Finding the Fourth Proportional to 2,650.48, 3,975.86 and 1,007.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,650.48 : 3,975.86 = 1,007.16 : x
2. Step 2: Convert to fraction form
   2,650.48/3,975.86 = 1,007.16/x
3. Step 3: Cross multiply
   2,650.48x = 3,975.86 × 1,007.16
4. Step 4: Simplify right side
   2,650.48x = 4,004,323.12
5. Step 5: Solve for x
   x = 4,004,323.12/2,650.48
6. Step 6: Final answer
   x = 1,510.79