Finding the Fourth Proportional to 3,608.26, 4,981.50 and 2,490.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,608.26 : 4,981.50 = 2,490.82 : x
2. Step 2: Convert to fraction form
   3,608.26/4,981.50 = 2,490.82/x
3. Step 3: Cross multiply
   3,608.26x = 4,981.50 × 2,490.82
4. Step 4: Simplify right side
   3,608.26x = 12,408,019.83
5. Step 5: Solve for x
   x = 12,408,019.83/3,608.26
6. Step 6: Final answer
   x = 3,438.78