Finding the Fourth Proportional to 2,538,441.80, 3,807,675.90 and 855,559.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,538,441.80 : 3,807,675.90 = 855,559.88 : x
2. Step 2: Convert to fraction form
   2,538,441.80/3,807,675.90 = 855,559.88/x
3. Step 3: Cross multiply
   2,538,441.80x = 3,807,675.90 × 855,559.88
4. Step 4: Simplify right side
   2,538,441.80x = 3,257,694,736,082.89
5. Step 5: Solve for x
   x = 3,257,694,736,082.89/2,538,441.80
6. Step 6: Final answer
   x = 1,283,344.27