Finding the Fourth Proportional to 3,865.59, 5,331.69 and 2,449.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,865.59 : 5,331.69 = 2,449.52 : x
2. Step 2: Convert to fraction form
   3,865.59/5,331.69 = 2,449.52/x
3. Step 3: Cross multiply
   3,865.59x = 5,331.69 × 2,449.52
4. Step 4: Simplify right side
   3,865.59x = 13,060,081.29
5. Step 5: Solve for x
   x = 13,060,081.29/3,865.59
6. Step 6: Final answer
   x = 3,378.55