Finding the Fourth Proportional to 1,554,978.52, 2,332,504.69 and 417,742.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,554,978.52 : 2,332,504.69 = 417,742.17 : x
2. Step 2: Convert to fraction form
   1,554,978.52/2,332,504.69 = 417,742.17/x
3. Step 3: Cross multiply
   1,554,978.52x = 2,332,504.69 × 417,742.17
4. Step 4: Simplify right side
   1,554,978.52x = 974,385,570,735.78
5. Step 5: Solve for x
   x = 974,385,570,735.78/1,554,978.52
6. Step 6: Final answer
   x = 626,623.17