Finding the Fourth Proportional to 4,016.78, 6,025.72 and 1,243.68

Step by Step Solution

1. Step 1: Write the proportion equation
   4,016.78 : 6,025.72 = 1,243.68 : x
2. Step 2: Convert to fraction form
   4,016.78/6,025.72 = 1,243.68/x
3. Step 3: Cross multiply
   4,016.78x = 6,025.72 × 1,243.68
4. Step 4: Simplify right side
   4,016.78x = 7,494,067.45
5. Step 5: Solve for x
   x = 7,494,067.45/4,016.78
6. Step 6: Final answer
   x = 1,865.69