N on equation with numbered variables

Question

Say I have a system of polynomial equations in the variables x[1],...,x[n]. Sometimes want to make such equations numerical (as in: the coefficients become floats) by applying N. What happens, though, is that the indices of my variables also get converted to floats, e.g.:

(*Input*)
N[ x[1]^2 == x[2] ]
(Output)
x[1.]^2 == x[2.]

Question: Is there an elegant method to make polynomial equations numerical without affecting indexed variables. Note that in the above example the square does not get converted to a float and I would like to keep it that way.