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: [-55.344, -4.792, -55.113, 62.131, 156.838, -48.144, -2.878]
A: 
[-1.05  -0.091 -1.046  1.179  2.976 -0.914 -0.055]