Forget about PageRank. Google has stopped updating toolbar PR and it's essentially dead now. Use MOZ metrics instead to get an idea of how authoritative your site is in Google.
Page rank is a history for us now. Google has last updated page rank of websites a year back. So you should better concentrate on quality content and link building. If Google rolls out page rank then you can have a probability.
for increasing the ranking of the page do off page seo and on page seo. in off page seo always used fresh and quality contents. avoid spamming and duplicacy of contents. some off page techniques are
Forum Posting
Directory Submission
Social Bookmarking
Classified posting
Yahoo answering
Blog commenting
Blog creation
RSS submission
Article Submission
Ensure that your content matches your site description and keywords.
Update your website regularly with new content.
Forum posting
Web blog 2.0
Directories submission
And Guest posting...
Your page rank is based on a combination of the quality of your content, your search engine optimization, and your links and viewership. Improving all of these aspects will lead to an increase in your rank.
Just perform high quality link building and attract visitors to your website.Its about increasing the websites visibility as a whole which can help in increasing the pagerank of a website.
Here is a simplified strategy to get top rankings:
1. Keyword Research – pick a keyword that gets
searched and has less than 3 title tag matches in
Google
2. Target that keyword as your blog / website title
and use at least twice throughout your content
3. Link back to your site on at least a couple
relevant sites.
you can also hire experts from SEOclerks who can provide you with rank increasing tools at cheap rates.