Finding the Fourth Proportional to 1,146,189.12, 1,581,671.52 and 636,874.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,146,189.12 : 1,581,671.52 = 636,874.08 : x
2. Step 2: Convert to fraction form
   1,146,189.12/1,581,671.52 = 636,874.08/x
3. Step 3: Cross multiply
   1,146,189.12x = 1,581,671.52 × 636,874.08
4. Step 4: Simplify right side
   1,146,189.12x = 1,007,325,594,162.20
5. Step 5: Solve for x
   x = 1,007,325,594,162.20/1,146,189.12
6. Step 6: Final answer
   x = 878,847.63