Finding the Fourth Proportional to 1,152,615.96, 1,729,180.98 and 353,978.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152,615.96 : 1,729,180.98 = 353,978.10 : x
2. Step 2: Convert to fraction form
   1,152,615.96/1,729,180.98 = 353,978.10/x
3. Step 3: Cross multiply
   1,152,615.96x = 1,729,180.98 × 353,978.10
4. Step 4: Simplify right side
   1,152,615.96x = 612,092,197,856.54
5. Step 5: Solve for x
   x = 612,092,197,856.54/1,152,615.96
6. Step 6: Final answer
   x = 531,046.09