Finding the Fourth Proportional to 2,082.38, 3,124.38 and 987.66

Step by Step Solution

1. Step 1: Write the proportion equation
   2,082.38 : 3,124.38 = 987.66 : x
2. Step 2: Convert to fraction form
   2,082.38/3,124.38 = 987.66/x
3. Step 3: Cross multiply
   2,082.38x = 3,124.38 × 987.66
4. Step 4: Simplify right side
   2,082.38x = 3,085,825.15
5. Step 5: Solve for x
   x = 3,085,825.15/2,082.38
6. Step 6: Final answer
   x = 1,481.88