Finding the Fourth Proportional to 2,935.38, 4,403.72 and 855.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,935.38 : 4,403.72 = 855.55 : x
2. Step 2: Convert to fraction form
   2,935.38/4,403.72 = 855.55/x
3. Step 3: Cross multiply
   2,935.38x = 4,403.72 × 855.55
4. Step 4: Simplify right side
   2,935.38x = 3,767,602.65
5. Step 5: Solve for x
   x = 3,767,602.65/2,935.38
6. Step 6: Final answer
   x = 1,283.51