Finding the Fourth Proportional to 2,082.45, 3,122.63 and 695.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,082.45 : 3,122.63 = 695.30 : x
2. Step 2: Convert to fraction form
   2,082.45/3,122.63 = 695.30/x
3. Step 3: Cross multiply
   2,082.45x = 3,122.63 × 695.30
4. Step 4: Simplify right side
   2,082.45x = 2,171,148.16
5. Step 5: Solve for x
   x = 2,171,148.16/2,082.45
6. Step 6: Final answer
   x = 1,042.59