Finding the Fourth Proportional to 1,047,647.62, 1,571,572.71 and 416,419.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047,647.62 : 1,571,572.71 = 416,419.78 : x
2. Step 2: Convert to fraction form
   1,047,647.62/1,571,572.71 = 416,419.78/x
3. Step 3: Cross multiply
   1,047,647.62x = 1,571,572.71 × 416,419.78
4. Step 4: Simplify right side
   1,047,647.62x = 654,433,962,152.20
5. Step 5: Solve for x
   x = 654,433,962,152.20/1,047,647.62
6. Step 6: Final answer
   x = 624,669.93