Finding the Fourth Proportional to 2,081.82, 3,122.87 and 695.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.82 : 3,122.87 = 695.10 : x
2. Step 2: Convert to fraction form
   2,081.82/3,122.87 = 695.10/x
3. Step 3: Cross multiply
   2,081.82x = 3,122.87 × 695.10
4. Step 4: Simplify right side
   2,081.82x = 2,170,703.46
5. Step 5: Solve for x
   x = 2,170,703.46/2,081.82
6. Step 6: Final answer
   x = 1,042.70