Finding the Fourth Proportional to 1,061,852.71, 1,591,897.27 and 421,761.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061,852.71 : 1,591,897.27 = 421,761.55 : x
2. Step 2: Convert to fraction form
   1,061,852.71/1,591,897.27 = 421,761.55/x
3. Step 3: Cross multiply
   1,061,852.71x = 1,591,897.27 × 421,761.55
4. Step 4: Simplify right side
   1,061,852.71x = 671,401,060,035.97
5. Step 5: Solve for x
   x = 671,401,060,035.97/1,061,852.71
6. Step 6: Final answer
   x = 632,292.08