Finding the Fourth Proportional to 2,561,131.30, 3,841,915.65 and 878,234.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,561,131.30 : 3,841,915.65 = 878,234.80 : x
2. Step 2: Convert to fraction form
   2,561,131.30/3,841,915.65 = 878,234.80/x
3. Step 3: Cross multiply
   2,561,131.30x = 3,841,915.65 × 878,234.80
4. Step 4: Simplify right side
   2,561,131.30x = 3,374,104,022,494.62
5. Step 5: Solve for x
   x = 3,374,104,022,494.62/2,561,131.30
6. Step 6: Final answer
   x = 1,317,427.19