  In this article, we introduce a four-point analogue of Banach-type,
Kannan-type, and Chatterjea-type contractions, and examine their properties. We
establish sufficient conditions under which these mappings achieve fixed points
in a complete metric space. Notably, the classical Banach contraction principle
emerges as a special case of our results. To illustrate our theoretical
findings, we present several non-trivial examples.
