Finding the Fourth Proportional to 1,062,291.24, 1,593,432.54 and 431,199.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,062,291.24 : 1,593,432.54 = 431,199.72 : x
2. Step 2: Convert to fraction form
   1,062,291.24/1,593,432.54 = 431,199.72/x
3. Step 3: Cross multiply
   1,062,291.24x = 1,593,432.54 × 431,199.72
4. Step 4: Simplify right side
   1,062,291.24x = 687,087,665,086.89
5. Step 5: Solve for x
   x = 687,087,665,086.89/1,062,291.24
6. Step 6: Final answer
   x = 646,797.83