Finding the Fourth Proportional to 2,082.32, 3,124.50 and 985.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,082.32 : 3,124.50 = 985.38 : x
2. Step 2: Convert to fraction form
   2,082.32/3,124.50 = 985.38/x
3. Step 3: Cross multiply
   2,082.32x = 3,124.50 × 985.38
4. Step 4: Simplify right side
   2,082.32x = 3,078,816.11
5. Step 5: Solve for x
   x = 3,078,816.11/2,082.32
6. Step 6: Final answer
   x = 1,478.55