Finding the Fourth Proportional to 2,082.67, 3,123.15 and 987.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,082.67 : 3,123.15 = 987.37 : x
2. Step 2: Convert to fraction form
   2,082.67/3,123.15 = 987.37/x
3. Step 3: Cross multiply
   2,082.67x = 3,123.15 × 987.37
4. Step 4: Simplify right side
   2,082.67x = 3,083,704.62
5. Step 5: Solve for x
   x = 3,083,704.62/2,082.67
6. Step 6: Final answer
   x = 1,480.65