Finding the Fourth Proportional to 2,082.32, 2,872.87 and 1,242.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,082.32 : 2,872.87 = 1,242.45 : x
2. Step 2: Convert to fraction form
   2,082.32/2,872.87 = 1,242.45/x
3. Step 3: Cross multiply
   2,082.32x = 2,872.87 × 1,242.45
4. Step 4: Simplify right side
   2,082.32x = 3,569,397.33
5. Step 5: Solve for x
   x = 3,569,397.33/2,082.32
6. Step 6: Final answer
   x = 1,714.14