Finding the Fourth Proportional to 2,650.55, 3,974.24 and 1,007.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,650.55 : 3,974.24 = 1,007.21 : x
2. Step 2: Convert to fraction form
   2,650.55/3,974.24 = 1,007.21/x
3. Step 3: Cross multiply
   2,650.55x = 3,974.24 × 1,007.21
4. Step 4: Simplify right side
   2,650.55x = 4,002,906.72
5. Step 5: Solve for x
   x = 4,002,906.72/2,650.55
6. Step 6: Final answer
   x = 1,510.22