I have four styles that I use as my headers in a document so the table of content can be build. So, I have Header1, Header2, Header3 and Header4. However, when I use those styles in my document, I would like to obtain automatic generated numbers to it such as:

This is title for Header1 style 1
   This is title for Header2 style 1.1
      This is title for Header3 style 1.1.1
         This is title for Header4 style 1.1.1.1
         This is title for Header4 style 1.1.1.2
      This is title for Header3 style 1.1.2
   This is title for Header2 style 1.2
      This is title for Header3 style 1.2.1
         This is title for Header4 style 1.2.1.1
         This is title for Header4 style 1.2.1.2
      This is title for Header3 style 1.2.2
   This is title for Header2 style 1.3
   This is title for Header2 style 1.4
This is title for Header1 style 2
   This is title for Header2 style 2.1
   This is title for Header2 style 2.2
This is title for Header1 style 3
This is title for Header1 style 4

What would be required to obtain this type of representation?