I am using overleaf and I want to go to the fourth section. I am using \chapter, \section \subsection and \subsubsection. I want the (1.1.1.1 desired) mark. I tried using \paragraph but it is not showing up as a numbered heading in the table of content. 

1. Text

1.1. Text

1.1.1. Text

1.1.1.1 Desired?