Question 362454
The mean is the division of the sum of the numbers by 7 as there are 7 numbers. 

So let's find the sum of the 7 numbers >> 405*7 =  2835

Let's find the unknown sum of the 5 numbers by subtracting the sum of the given numbers from the total sum >> 2835-(103+199)=2533

The smallest number of this 5 numbers set must be greater than 199.If we want to find the possible greatest number in this 5 numbers set,we must choose the other 4 numbers minimum.
So I'll choose such that, as they must be different from eachother ;

200,201,202,203 and sum up : 200+201+202+203 = 806

The possible greatest one is 2533-806 = 1727
RF.