Finding the Fourth Proportional to 778,459.86, 1,074,882.69 and 609,176.34

Step by Step Solution

1. Step 1: Write the proportion equation
   778,459.86 : 1,074,882.69 = 609,176.34 : x
2. Step 2: Convert to fraction form
   778,459.86/1,074,882.69 = 609,176.34/x
3. Step 3: Cross multiply
   778,459.86x = 1,074,882.69 × 609,176.34
4. Step 4: Simplify right side
   778,459.86x = 654,793,103,023.56
5. Step 5: Solve for x
   x = 654,793,103,023.56/778,459.86
6. Step 6: Final answer
   x = 841,139.20