Finding the Fourth Proportional to 871,152.22, 1,304,978.71 and 397,185.58

Step by Step Solution

1. Step 1: Write the proportion equation
   871,152.22 : 1,304,978.71 = 397,185.58 : x
2. Step 2: Convert to fraction form
   871,152.22/1,304,978.71 = 397,185.58/x
3. Step 3: Cross multiply
   871,152.22x = 1,304,978.71 × 397,185.58
4. Step 4: Simplify right side
   871,152.22x = 518,318,725,819.00
5. Step 5: Solve for x
   x = 518,318,725,819.00/871,152.22
6. Step 6: Final answer
   x = 594,980.66