Finding the Fourth Proportional to 627,870.54, 866,454.83 and 467,443.02

Step by Step Solution

1. Step 1: Write the proportion equation
   627,870.54 : 866,454.83 = 467,443.02 : x
2. Step 2: Convert to fraction form
   627,870.54/866,454.83 = 467,443.02/x
3. Step 3: Cross multiply
   627,870.54x = 866,454.83 × 467,443.02
4. Step 4: Simplify right side
   627,870.54x = 405,018,262,428.79
5. Step 5: Solve for x
   x = 405,018,262,428.79/627,870.54
6. Step 6: Final answer
   x = 645,066.52