Finding the Fourth Proportional to 2,642.83, 3,964.28 and 695.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,642.83 : 3,964.28 = 695.05 : x
2. Step 2: Convert to fraction form
   2,642.83/3,964.28 = 695.05/x
3. Step 3: Cross multiply
   2,642.83x = 3,964.28 × 695.05
4. Step 4: Simplify right side
   2,642.83x = 2,755,359.43
5. Step 5: Solve for x
   x = 2,755,359.43/2,642.83
6. Step 6: Final answer
   x = 1,042.58