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.

Example Input: [-20.728, 47.8, -7.813]
Example Output: [-1.076  2.482 -0.406]

Example Input: [107.499, 46.989, 52.923, -98.504, 12.47, 176.268, 89.606, 240.138]
Example Output: [ 0.171  0.075  0.084 -0.157  0.02   0.281  0.143  0.383]

Example Input: [38.384, 7.08, 158.183, 183.227]
Example Output:
[0.099 0.018 0.409 0.474]