Finding the Fourth Proportional to 2,082.16, 3,123.68 and 849.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,082.16 : 3,123.68 = 849.58 : x
2. Step 2: Convert to fraction form
   2,082.16/3,123.68 = 849.58/x
3. Step 3: Cross multiply
   2,082.16x = 3,123.68 × 849.58
4. Step 4: Simplify right side
   2,082.16x = 2,653,816.05
5. Step 5: Solve for x
   x = 2,653,816.05/2,082.16
6. Step 6: Final answer
   x = 1,274.55