Finding the missing annual income

Question

So I have 5 people in total, they all have their annual incomes except for one person:

Person 1: € 28.165,-
Person 2: € 37,210,-
Person 3: ???
Person 4: € 55,254,-
Person 5: € 64,243,-

How Can I find the answer to person 3's annual income?
Person 3 doesn't stand out as much, his income can't be more than person 4's and less than person 3's annual income

I've been trying to find the steps inbetween each income which should be 0.052819403
But when I try to put that all in a spread sheet, the numbers simply dont check out due to the amount of digits behind the comma

Picture to the spreadsheet:

https://i.imgur.com/hqk2I9h.png

What am I doing wrong? I just can't seem to figure it out

Thanks in advance!

Answer 1

46,232 is midway between person 2 and 4

that makes a 9022 difference between 2 and 3 and between 3 and 4

difference between 1 and 2 is 9045

difference between 4 and 5 is 8989

differences are from 8989 to 9045 which average 9017

9022 is very close to the average difference between each person when listed from lowest to highest