Finding the Fourth Proportional to 3,665.46, 5,500.92 and 2,280.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,665.46 : 5,500.92 = 2,280.81 : x
2. Step 2: Convert to fraction form
   3,665.46/5,500.92 = 2,280.81/x
3. Step 3: Cross multiply
   3,665.46x = 5,500.92 × 2,280.81
4. Step 4: Simplify right side
   3,665.46x = 12,546,553.35
5. Step 5: Solve for x
   x = 12,546,553.35/3,665.46
6. Step 6: Final answer
   x = 3,422.91