WP User Query - how to get sequence number?

Question

SQL

Good afternoon,
I'm using the wp_user_query() class with sorting by numeric meta field to get a list of users in the correct order.
Prompt, how it is possible to receive serial number of the current user avoiding a cycle?
The second day I'm puzzling over this question - in fact, it's not a problem to do this in a cycle

$i++; 
if(get_current_user_id() == user->ID) {
 echo $i; 
}

but I don't like this option, I'm sure there are more productive solutions :)
Thank you.