Finding the Fourth Proportional to 2,196.45, 3,294.18 and 636.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.45 : 3,294.18 = 636.44 : x
2. Step 2: Convert to fraction form
   2,196.45/3,294.18 = 636.44/x
3. Step 3: Cross multiply
   2,196.45x = 3,294.18 × 636.44
4. Step 4: Simplify right side
   2,196.45x = 2,096,531.45
5. Step 5: Solve for x
   x = 2,096,531.45/2,196.45
6. Step 6: Final answer
   x = 954.51