Finding the Fourth Proportional to 2,196.13, 3,293.69 and 635.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.13 : 3,293.69 = 635.80 : x
2. Step 2: Convert to fraction form
   2,196.13/3,293.69 = 635.80/x
3. Step 3: Cross multiply
   2,196.13x = 3,293.69 × 635.80
4. Step 4: Simplify right side
   2,196.13x = 2,094,128.10
5. Step 5: Solve for x
   x = 2,094,128.10/2,196.13
6. Step 6: Final answer
   x = 953.55