8.4 format to see 4 digits after decimal point

[Ronein]

Hello

I am  using format 8.4

What is the reason that I see only 3 digits after point and not 4 digits?

For example: 9581.1728   I see as  9581.173  

What is the way to see 4 digits?

data have;
format x_numeric 8.4;
input x_numeric;
cards;
9581.1728
9791.5262
1366.1106
;
Run;

[PaigeMiller]

To see a number like 9581.1728 you need 9 spaces, not 8.

[Kurt_Bremser · Accepted solution]

4 digits left of the dot, the dot, and 3 digits after the dot add up to 8. That's why you need 9.4.

With possible negative values, you would need 10.