Finding the Fourth Proportional to 3,665.58, 5,501.10 and 2,280.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,665.58 : 5,501.10 = 2,280.94 : x
2. Step 2: Convert to fraction form
   3,665.58/5,501.10 = 2,280.94/x
3. Step 3: Cross multiply
   3,665.58x = 5,501.10 × 2,280.94
4. Step 4: Simplify right side
   3,665.58x = 12,547,679.03
5. Step 5: Solve for x
   x = 12,547,679.03/3,665.58
6. Step 6: Final answer
   x = 3,423.11