Finding the Fourth Proportional to 1,561,152.61, 2,343,853.35 and 878,521.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,561,152.61 : 2,343,853.35 = 878,521.72 : x
2. Step 2: Convert to fraction form
   1,561,152.61/2,343,853.35 = 878,521.72/x
3. Step 3: Cross multiply
   1,561,152.61x = 2,343,853.35 × 878,521.72
4. Step 4: Simplify right side
   1,561,152.61x = 2,059,126,076,469.76
5. Step 5: Solve for x
   x = 2,059,126,076,469.76/1,561,152.61
6. Step 6: Final answer
   x = 1,318,978.08