Finding the Fourth Proportional to 807,971.52, 1,114,870.32 and 485,604.48

Step by Step Solution

1. Step 1: Write the proportion equation
   807,971.52 : 1,114,870.32 = 485,604.48 : x
2. Step 2: Convert to fraction form
   807,971.52/1,114,870.32 = 485,604.48/x
3. Step 3: Cross multiply
   807,971.52x = 1,114,870.32 × 485,604.48
4. Step 4: Simplify right side
   807,971.52x = 541,386,022,011.03
5. Step 5: Solve for x
   x = 541,386,022,011.03/807,971.52
6. Step 6: Final answer
   x = 670,055.82