Finding the Fourth Proportional to 3,638.24, 5,020.62 and 2,066.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,638.24 : 5,020.62 = 2,066.48 : x
2. Step 2: Convert to fraction form
   3,638.24/5,020.62 = 2,066.48/x
3. Step 3: Cross multiply
   3,638.24x = 5,020.62 × 2,066.48
4. Step 4: Simplify right side
   3,638.24x = 10,375,010.82
5. Step 5: Solve for x
   x = 10,375,010.82/3,638.24
6. Step 6: Final answer
   x = 2,851.66