Finding the Fourth Proportional to 2,560.36, 3,838.27 and 999.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,560.36 : 3,838.27 = 999.27 : x
2. Step 2: Convert to fraction form
   2,560.36/3,838.27 = 999.27/x
3. Step 3: Cross multiply
   2,560.36x = 3,838.27 × 999.27
4. Step 4: Simplify right side
   2,560.36x = 3,835,472.54
5. Step 5: Solve for x
   x = 3,835,472.54/2,560.36
6. Step 6: Final answer
   x = 1,498.02