Finding the Fourth Proportional to 1,000,354.50, 1,380,620.62 and 570,536.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,000,354.50 : 1,380,620.62 = 570,536.10 : x
2. Step 2: Convert to fraction form
   1,000,354.50/1,380,620.62 = 570,536.10/x
3. Step 3: Cross multiply
   1,000,354.50x = 1,380,620.62 × 570,536.10
4. Step 4: Simplify right side
   1,000,354.50x = 787,693,895,784.94
5. Step 5: Solve for x
   x = 787,693,895,784.94/1,000,354.50
6. Step 6: Final answer
   x = 787,414.76