Finding the Fourth Proportional to 2,082.79, 3,123.15 and 695.65

Step by Step Solution

1. Step 1: Write the proportion equation
   2,082.79 : 3,123.15 = 695.65 : x
2. Step 2: Convert to fraction form
   2,082.79/3,123.15 = 695.65/x
3. Step 3: Cross multiply
   2,082.79x = 3,123.15 × 695.65
4. Step 4: Simplify right side
   2,082.79x = 2,172,619.30
5. Step 5: Solve for x
   x = 2,172,619.30/2,082.79
6. Step 6: Final answer
   x = 1,043.13