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: [3.047, 155.678, 94.781, -73.491, -33.037, -39.522, 72.956]
Example Output: [ 0.017  0.863  0.525 -0.407 -0.183 -0.219  0.404]

Example Input: [-29.429, 30.51, 95.182, -26.973]
Example Output: [-0.425  0.44   1.374 -0.389]

Example Input: [-71.284, 136.404, -87.205]
Example Output:
[ 3.228 -6.176  3.949]