Finding the Fourth Proportional to 3,945.15, 5,914.98 and 1,863.99

Step by Step Solution

1. Step 1: Write the proportion equation
   3,945.15 : 5,914.98 = 1,863.99 : x
2. Step 2: Convert to fraction form
   3,945.15/5,914.98 = 1,863.99/x
3. Step 3: Cross multiply
   3,945.15x = 5,914.98 × 1,863.99
4. Step 4: Simplify right side
   3,945.15x = 11,025,463.57
5. Step 5: Solve for x
   x = 11,025,463.57/3,945.15
6. Step 6: Final answer
   x = 2,794.69