Finding the Fourth Proportional to 2,196.98, 3,294.95 and 636.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.98 : 3,294.95 = 636.56 : x
2. Step 2: Convert to fraction form
   2,196.98/3,294.95 = 636.56/x
3. Step 3: Cross multiply
   2,196.98x = 3,294.95 × 636.56
4. Step 4: Simplify right side
   2,196.98x = 2,097,440.02
5. Step 5: Solve for x
   x = 2,097,440.02/2,196.98
6. Step 6: Final answer
   x = 954.69