Scheduled amount of pledge payment is a string instead of a float

In class CRM_Pledge_BAO_Payment, the function create() calculates the scheduled amount as follows:

$params['scheduled_amount'] = number_format( ( $params['amount'] / $params['installments'] ), 2 );

The function number_format returns a string instead of a float which causes problems in the subsequent calculations. This should instead be calculated using the round function which returns a float.

$params['scheduled_amount'] = round( $params['amount'] / $params['installments'], 2 );

If the schuduled amount equals or exceeds 1000, then the math fails down the line. Example: if amount is 1,000, then it is treated as 1 instead of 1000.