Finding the Fourth Proportional to 1,337.83, 2,007.50 and 721.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,337.83 : 2,007.50 = 721.52 : x
2. Step 2: Convert to fraction form
   1,337.83/2,007.50 = 721.52/x
3. Step 3: Cross multiply
   1,337.83x = 2,007.50 × 721.52
4. Step 4: Simplify right side
   1,337.83x = 1,448,437.75
5. Step 5: Solve for x
   x = 1,448,437.75/1,337.83
6. Step 6: Final answer
   x = 1,082.68