Finding the Fourth Proportional to 2,168.82, 3,251.88 and 935.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,168.82 : 3,251.88 = 935.55 : x
2. Step 2: Convert to fraction form
   2,168.82/3,251.88 = 935.55/x
3. Step 3: Cross multiply
   2,168.82x = 3,251.88 × 935.55
4. Step 4: Simplify right side
   2,168.82x = 3,042,296.33
5. Step 5: Solve for x
   x = 3,042,296.33/2,168.82
6. Step 6: Final answer
   x = 1,402.74