Four 301-redirects from ‘’ to ‘’ (am I losing my Google PageRank?)

Some years ago, I started my website with the main domain ‘’. However, the project ended up being a store under ‘’.

I obtained hundreds of links to ‘’, and today (after two years) I found that the redirection is not well-constructed, because there are four 301-redirects from ‘’ to ‘’.

I have two questions:

  1. Should I fix urgently this issue of "too many 301-redirects" in order not to loose my Google PageRank?
  2. Is there any quick Rewrite Rule for Apache 301-redirect from ‘’ to ‘’?