Finding the Fourth Proportional to 3,715.32, 5,127.24 and 2,143.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,715.32 : 5,127.24 = 2,143.50 : x
2. Step 2: Convert to fraction form
   3,715.32/5,127.24 = 2,143.50/x
3. Step 3: Cross multiply
   3,715.32x = 5,127.24 × 2,143.50
4. Step 4: Simplify right side
   3,715.32x = 10,990,238.94
5. Step 5: Solve for x
   x = 10,990,238.94/3,715.32
6. Step 6: Final answer
   x = 2,958.09