Finding the Fourth Proportional to 3,963.30, 5,469.42 and 2,194.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,963.30 : 5,469.42 = 2,194.86 : x
2. Step 2: Convert to fraction form
   3,963.30/5,469.42 = 2,194.86/x
3. Step 3: Cross multiply
   3,963.30x = 5,469.42 × 2,194.86
4. Step 4: Simplify right side
   3,963.30x = 12,004,611.18
5. Step 5: Solve for x
   x = 12,004,611.18/3,963.30
6. Step 6: Final answer
   x = 3,028.94