Since 1 US Dollar is equal to 4.318561 Polish Zloty, we could say that n United States Dollars are equal to 4.318561 times n Polish Zloty. In other words, we could use the following formula:
Polish Zloty = United States Dollars x 4.318561
For example, let's say that we want to convert 2 United States Dollars to Polish Zloty. Then, we just replace United States Dollars in the abovementioned formula with 2:
Polish Zloty = 2 x 4.318561
That is, 2 United States Dollars are equal to 8.637122 Polish Zloty.