Finding the Fourth Proportional to 2,567.28, 3,851.49 and 1,007.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,567.28 : 3,851.49 = 1,007.43 : x
2. Step 2: Convert to fraction form
   2,567.28/3,851.49 = 1,007.43/x
3. Step 3: Cross multiply
   2,567.28x = 3,851.49 × 1,007.43
4. Step 4: Simplify right side
   2,567.28x = 3,880,106.57
5. Step 5: Solve for x
   x = 3,880,106.57/2,567.28
6. Step 6: Final answer
   x = 1,511.37