Finding the Fourth Proportional to 3,892.59, 5,371.74 and 2,124.14

Step by Step Solution

1. Step 1: Write the proportion equation
   3,892.59 : 5,371.74 = 2,124.14 : x
2. Step 2: Convert to fraction form
   3,892.59/5,371.74 = 2,124.14/x
3. Step 3: Cross multiply
   3,892.59x = 5,371.74 × 2,124.14
4. Step 4: Simplify right side
   3,892.59x = 11,410,300.94
5. Step 5: Solve for x
   x = 11,410,300.94/3,892.59
6. Step 6: Final answer
   x = 2,931.29