Finding the Fourth Proportional to 1,066,454.42, 1,471,724.60 and 636,772.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066,454.42 : 1,471,724.60 = 636,772.10 : x
2. Step 2: Convert to fraction form
   1,066,454.42/1,471,724.60 = 636,772.10/x
3. Step 3: Cross multiply
   1,066,454.42x = 1,471,724.60 × 636,772.10
4. Step 4: Simplify right side
   1,066,454.42x = 937,153,153,621.18
5. Step 5: Solve for x
   x = 937,153,153,621.18/1,066,454.42
6. Step 6: Final answer
   x = 878,755.94