Finding the Fourth Proportional to 2,288.86, 3,432.54 and 749.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.86 : 3,432.54 = 749.50 : x
2. Step 2: Convert to fraction form
   2,288.86/3,432.54 = 749.50/x
3. Step 3: Cross multiply
   2,288.86x = 3,432.54 × 749.50
4. Step 4: Simplify right side
   2,288.86x = 2,572,688.73
5. Step 5: Solve for x
   x = 2,572,688.73/2,288.86
6. Step 6: Final answer
   x = 1,124.00