Finding the Fourth Proportional to 850,807.98, 1,172,499.92 and 608,670.12

Step by Step Solution

1. Step 1: Write the proportion equation
   850,807.98 : 1,172,499.92 = 608,670.12 : x
2. Step 2: Convert to fraction form
   850,807.98/1,172,499.92 = 608,670.12/x
3. Step 3: Cross multiply
   850,807.98x = 1,172,499.92 × 608,670.12
4. Step 4: Simplify right side
   850,807.98x = 713,665,667,006.39
5. Step 5: Solve for x
   x = 713,665,667,006.39/850,807.98
6. Step 6: Final answer
   x = 838,809.32