Finding the Fourth Proportional to 3,643.46, 5,025.63 and 2,151.29

Step by Step Solution

1. Step 1: Write the proportion equation
   3,643.46 : 5,025.63 = 2,151.29 : x
2. Step 2: Convert to fraction form
   3,643.46/5,025.63 = 2,151.29/x
3. Step 3: Cross multiply
   3,643.46x = 5,025.63 × 2,151.29
4. Step 4: Simplify right side
   3,643.46x = 10,811,567.82
5. Step 5: Solve for x
   x = 10,811,567.82/3,643.46
6. Step 6: Final answer
   x = 2,967.39