Finding the Fourth Proportional to 1,602.48, 2,211.98 and 939.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,602.48 : 2,211.98 = 939.53 : x
2. Step 2: Convert to fraction form
   1,602.48/2,211.98 = 939.53/x
3. Step 3: Cross multiply
   1,602.48x = 2,211.98 × 939.53
4. Step 4: Simplify right side
   1,602.48x = 2,078,222.40
5. Step 5: Solve for x
   x = 2,078,222.40/1,602.48
6. Step 6: Final answer
   x = 1,296.88