Finding the Fourth Proportional to 1,561,151.61, 2,343,851.85 and 878,520.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,561,151.61 : 2,343,851.85 = 878,520.72 : x
2. Step 2: Convert to fraction form
   1,561,151.61/2,343,851.85 = 878,520.72/x
3. Step 3: Cross multiply
   1,561,151.61x = 2,343,851.85 × 878,520.72
4. Step 4: Simplify right side
   1,561,151.61x = 2,059,122,414,835.33
5. Step 5: Solve for x
   x = 2,059,122,414,835.33/1,561,151.61
6. Step 6: Final answer
   x = 1,318,976.58