Finding the Fourth Proportional to 2,082.39, 3,124.59 and 986.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,082.39 : 3,124.59 = 986.14 : x
2. Step 2: Convert to fraction form
   2,082.39/3,124.59 = 986.14/x
3. Step 3: Cross multiply
   2,082.39x = 3,124.59 × 986.14
4. Step 4: Simplify right side
   2,082.39x = 3,081,283.18
5. Step 5: Solve for x
   x = 3,081,283.18/2,082.39
6. Step 6: Final answer
   x = 1,479.69