Finding the Fourth Proportional to 2,022.79, 3,034.31 and 636.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,022.79 : 3,034.31 = 636.18 : x
2. Step 2: Convert to fraction form
   2,022.79/3,034.31 = 636.18/x
3. Step 3: Cross multiply
   2,022.79x = 3,034.31 × 636.18
4. Step 4: Simplify right side
   2,022.79x = 1,930,368.93
5. Step 5: Solve for x
   x = 1,930,368.93/2,022.79
6. Step 6: Final answer
   x = 954.31