Finding the Fourth Proportional to 2,561,908.77, 3,843,061.56 and 856,057.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,561,908.77 : 3,843,061.56 = 856,057.98 : x
2. Step 2: Convert to fraction form
   2,561,908.77/3,843,061.56 = 856,057.98/x
3. Step 3: Cross multiply
   2,561,908.77x = 3,843,061.56 × 856,057.98
4. Step 4: Simplify right side
   2,561,908.77x = 3,289,883,516,069.25
5. Step 5: Solve for x
   x = 3,289,883,516,069.25/2,561,908.77
6. Step 6: Final answer
   x = 1,284,153.27