Finding the Fourth Proportional to 3,882.31, 5,814.18 and 2,124.68

Step by Step Solution

1. Step 1: Write the proportion equation
   3,882.31 : 5,814.18 = 2,124.68 : x
2. Step 2: Convert to fraction form
   3,882.31/5,814.18 = 2,124.68/x
3. Step 3: Cross multiply
   3,882.31x = 5,814.18 × 2,124.68
4. Step 4: Simplify right side
   3,882.31x = 12,353,242.89
5. Step 5: Solve for x
   x = 12,353,242.89/3,882.31
6. Step 6: Final answer
   x = 3,181.93