Finding the Fourth Proportional to 3,923.86, 5,414.35 and 2,245

Step by Step Solution

1. Step 1: Write the proportion equation
   3,923.86 : 5,414.35 = 2,245 : x
2. Step 2: Convert to fraction form
   3,923.86/5,414.35 = 2,245/x
3. Step 3: Cross multiply
   3,923.86x = 5,414.35 × 2,245
4. Step 4: Simplify right side
   3,923.86x = 12,155,215.75
5. Step 5: Solve for x
   x = 12,155,215.75/3,923.86
6. Step 6: Final answer
   x = 3,097.77