I'm assuming that each number is in correspondence with a number of the other variable in terms of order.
What you want to do is look at each value of g(x) and see which number is closest to 3, then which ever value of x was plugged in for that function is your answer.
So the value of g(x) that is closest to 3 is 3.8 which I'm assuming that would mean the value of x would be 3.1 because it also comes first in the order you gave
