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: [-1.221, -57.825, 88.968, 237.724, 173.581, -67.349]
Example Output: [-0.003 -0.155  0.238  0.636  0.464 -0.18 ]

Example Input: [43.938, 83.985, -7.291]
Example Output: [ 0.364  0.696 -0.06 ]

Example Input: [148.702, 143.872, 226.132]
Example Output:
[0.287 0.277 0.436]