Finding the Fourth Proportional to 3,963.16, 5,469.27 and 2,194.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,963.16 : 5,469.27 = 2,194.79 : x
2. Step 2: Convert to fraction form
   3,963.16/5,469.27 = 2,194.79/x
3. Step 3: Cross multiply
   3,963.16x = 5,469.27 × 2,194.79
4. Step 4: Simplify right side
   3,963.16x = 12,003,899.10
5. Step 5: Solve for x
   x = 12,003,899.10/3,963.16
6. Step 6: Final answer
   x = 3,028.87