Finding the Fourth Proportional to 1,337.28, 1,845.28 and 747.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,337.28 : 1,845.28 = 747.72 : x
2. Step 2: Convert to fraction form
   1,337.28/1,845.28 = 747.72/x
3. Step 3: Cross multiply
   1,337.28x = 1,845.28 × 747.72
4. Step 4: Simplify right side
   1,337.28x = 1,379,752.76
5. Step 5: Solve for x
   x = 1,379,752.76/1,337.28
6. Step 6: Final answer
   x = 1,031.76