Finding the Fourth Proportional to 2,498.96, 3,747.76 and 855.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,498.96 : 3,747.76 = 855.88 : x
2. Step 2: Convert to fraction form
   2,498.96/3,747.76 = 855.88/x
3. Step 3: Cross multiply
   2,498.96x = 3,747.76 × 855.88
4. Step 4: Simplify right side
   2,498.96x = 3,207,632.83
5. Step 5: Solve for x
   x = 3,207,632.83/2,498.96
6. Step 6: Final answer
   x = 1,283.59