Finding the Fourth Proportional to 2,498.65, 3,747.26 and 855.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,498.65 : 3,747.26 = 855.16 : x
2. Step 2: Convert to fraction form
   2,498.65/3,747.26 = 855.16/x
3. Step 3: Cross multiply
   2,498.65x = 3,747.26 × 855.16
4. Step 4: Simplify right side
   2,498.65x = 3,204,499.63
5. Step 5: Solve for x
   x = 3,204,499.63/2,498.65
6. Step 6: Final answer
   x = 1,282.49