Finding the Fourth Proportional to 3,250.42, 4,870.14 and 2,561.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,250.42 : 4,870.14 = 2,561.56 : x
2. Step 2: Convert to fraction form
   3,250.42/4,870.14 = 2,561.56/x
3. Step 3: Cross multiply
   3,250.42x = 4,870.14 × 2,561.56
4. Step 4: Simplify right side
   3,250.42x = 12,475,155.82
5. Step 5: Solve for x
   x = 12,475,155.82/3,250.42
6. Step 6: Final answer
   x = 3,838.01