Finding the Fourth Proportional to 2,124.18, 3,182.16 and 1,391.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,124.18 : 3,182.16 = 1,391.52 : x
2. Step 2: Convert to fraction form
   2,124.18/3,182.16 = 1,391.52/x
3. Step 3: Cross multiply
   2,124.18x = 3,182.16 × 1,391.52
4. Step 4: Simplify right side
   2,124.18x = 4,428,039.28
5. Step 5: Solve for x
   x = 4,428,039.28/2,124.18
6. Step 6: Final answer
   x = 2,084.59