Instructions: 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.
Input: [131.746, 79.431, 68.187, 29.794, -32.513, 177.012, -86.988]
Output:
[ 0.359  0.217  0.186  0.081 -0.089  0.483 -0.237]