Finding the Fourth Proportional to 2,288.27, 3,432.53 and 728.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.27 : 3,432.53 = 728.39 : x
2. Step 2: Convert to fraction form
   2,288.27/3,432.53 = 728.39/x
3. Step 3: Cross multiply
   2,288.27x = 3,432.53 × 728.39
4. Step 4: Simplify right side
   2,288.27x = 2,500,225.47
5. Step 5: Solve for x
   x = 2,500,225.47/2,288.27
6. Step 6: Final answer
   x = 1,092.63