Finding the Fourth Proportional to 2,395.98, 3,594.22 and 664.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,395.98 : 3,594.22 = 664.61 : x
2. Step 2: Convert to fraction form
   2,395.98/3,594.22 = 664.61/x
3. Step 3: Cross multiply
   2,395.98x = 3,594.22 × 664.61
4. Step 4: Simplify right side
   2,395.98x = 2,388,734.92
5. Step 5: Solve for x
   x = 2,388,734.92/2,395.98
6. Step 6: Final answer
   x = 996.98