Finding the Fourth Proportional to 572,892.96, 790,614.72 and 391,984.32

Step by Step Solution

1. Step 1: Write the proportion equation
   572,892.96 : 790,614.72 = 391,984.32 : x
2. Step 2: Convert to fraction form
   572,892.96/790,614.72 = 391,984.32/x
3. Step 3: Cross multiply
   572,892.96x = 790,614.72 × 391,984.32
4. Step 4: Simplify right side
   572,892.96x = 309,908,573,401.19
5. Step 5: Solve for x
   x = 309,908,573,401.19/572,892.96
6. Step 6: Final answer
   x = 540,953.71