Finding the Fourth Proportional to 2,196.88, 3,295.32 and 636.97

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.88 : 3,295.32 = 636.97 : x
2. Step 2: Convert to fraction form
   2,196.88/3,295.32 = 636.97/x
3. Step 3: Cross multiply
   2,196.88x = 3,295.32 × 636.97
4. Step 4: Simplify right side
   2,196.88x = 2,099,019.98
5. Step 5: Solve for x
   x = 2,099,019.98/2,196.88
6. Step 6: Final answer
   x = 955.46