Finding the Fourth Proportional to 2,724.31, 4,082.68 and 1,423.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,724.31 : 4,082.68 = 1,423.18 : x
2. Step 2: Convert to fraction form
   2,724.31/4,082.68 = 1,423.18/x
3. Step 3: Cross multiply
   2,724.31x = 4,082.68 × 1,423.18
4. Step 4: Simplify right side
   2,724.31x = 5,810,388.52
5. Step 5: Solve for x
   x = 5,810,388.52/2,724.31
6. Step 6: Final answer
   x = 2,132.79