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: [192.254, 220.955, 92.015, -77.444, 82.473, 189.301, 12.748]
A: 
[ 0.27   0.31   0.129 -0.109  0.116  0.266  0.018]