Finding the Fourth Proportional to 2,097.26, 3,145.98 and 636.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,097.26 : 3,145.98 = 636.42 : x
2. Step 2: Convert to fraction form
   2,097.26/3,145.98 = 636.42/x
3. Step 3: Cross multiply
   2,097.26x = 3,145.98 × 636.42
4. Step 4: Simplify right side
   2,097.26x = 2,002,164.59
5. Step 5: Solve for x
   x = 2,002,164.59/2,097.26
6. Step 6: Final answer
   x = 954.66