Given the task definition and input, reply with output. In this task you will be given a list of numbers and you need to find the mean (average) of that list. The mean of a list can be found by summing every number in the list then dividing the result by the size of that list. The output should be rounded to 3 decimal places.

[92.543, 182.158, 92.028, 84.905, 28.435, 215.761, 143.144, 27.47]
108.306