Finding the Fourth Proportional to 1,337.12, 1,845.22 and 747.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,337.12 : 1,845.22 = 747.72 : x
2. Step 2: Convert to fraction form
   1,337.12/1,845.22 = 747.72/x
3. Step 3: Cross multiply
   1,337.12x = 1,845.22 × 747.72
4. Step 4: Simplify right side
   1,337.12x = 1,379,707.90
5. Step 5: Solve for x
   x = 1,379,707.90/1,337.12
6. Step 6: Final answer
   x = 1,031.85