4 > 3.14
Take a ruler, and find the point 3.14. The number has an infinite measure that drains downwards into an infinite measure. It's like a fractal number which gets smaller and smaller in between two points with infinite but precise accuracy.
Infinity doesn't have a digit, it occupies everything and beyond any number you can imagine.
Edit: We're talking about two different kinds of infinite that coexist on different planes. They're both infinite in a way.