Finding the Fourth Proportional to 2,650.86, 3,976.42 and 1,007.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,650.86 : 3,976.42 = 1,007.54 : x
2. Step 2: Convert to fraction form
   2,650.86/3,976.42 = 1,007.54/x
3. Step 3: Cross multiply
   2,650.86x = 3,976.42 × 1,007.54
4. Step 4: Simplify right side
   2,650.86x = 4,006,383.58
5. Step 5: Solve for x
   x = 4,006,383.58/2,650.86
6. Step 6: Final answer
   x = 1,511.35