Finding the Fourth Proportional to 1,337.50, 2,007.33 and 688.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,337.50 : 2,007.33 = 688.42 : x
2. Step 2: Convert to fraction form
   1,337.50/2,007.33 = 688.42/x
3. Step 3: Cross multiply
   1,337.50x = 2,007.33 × 688.42
4. Step 4: Simplify right side
   1,337.50x = 1,381,886.12
5. Step 5: Solve for x
   x = 1,381,886.12/1,337.50
6. Step 6: Final answer
   x = 1,033.19