What number comes before 395?

Answer 1

There is nu number before another because the set of numbers is infinitely dense.

If you claim that x1 is the number before 395, then what about x2 = (x1 + 395)/2?

Then x1 < x2 < 395 that is, x2 is before 395 and nearer to it. And then what about x3 = (x2 + 395)/2 and then x4 etc defined similarly?