Finding the Fourth Proportional to 2,535.08, 3,802.17 and 685.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,535.08 : 3,802.17 = 685.95 : x
2. Step 2: Convert to fraction form
   2,535.08/3,802.17 = 685.95/x
3. Step 3: Cross multiply
   2,535.08x = 3,802.17 × 685.95
4. Step 4: Simplify right side
   2,535.08x = 2,608,098.51
5. Step 5: Solve for x
   x = 2,608,098.51/2,535.08
6. Step 6: Final answer
   x = 1,028.81