Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is the average number of losses when there are more than 4 wins, and the against matches is more than 1728?

### Inputs:
table_name: table, columns: ['Club', 'Wins', 'Losses', 'Draws', 'Against']

### Response:
SELECT AVG Losses FROM table WHERE Wins < 4 AND Against > 1728