In this task, you will be given a list of numbers. The goal is to divide all the numbers in the list by a constant such that the sum of the resulting list is 1. The output should be rounded to 3 decimals.
Q: [213.909, -48.943, 112.737, 32.296, -81.448]
A: 
[ 0.936 -0.214  0.493  0.141 -0.356]