Finding the Fourth Proportional to 4,059.05, 5,598.61 and 2,640.12

Step by Step Solution

1. Step 1: Write the proportion equation
   4,059.05 : 5,598.61 = 2,640.12 : x
2. Step 2: Convert to fraction form
   4,059.05/5,598.61 = 2,640.12/x
3. Step 3: Cross multiply
   4,059.05x = 5,598.61 × 2,640.12
4. Step 4: Simplify right side
   4,059.05x = 14,781,002.23
5. Step 5: Solve for x
   x = 14,781,002.23/4,059.05
6. Step 6: Final answer
   x = 3,641.49