Finding the Fourth Proportional to 2,760.72, 4,143.69 and 1,007.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,760.72 : 4,143.69 = 1,007.43 : x
2. Step 2: Convert to fraction form
   2,760.72/4,143.69 = 1,007.43/x
3. Step 3: Cross multiply
   2,760.72x = 4,143.69 × 1,007.43
4. Step 4: Simplify right side
   2,760.72x = 4,174,477.62
5. Step 5: Solve for x
   x = 4,174,477.62/2,760.72
6. Step 6: Final answer
   x = 1,512.10