Finding the Fourth Proportional to 4,191.15, 5,789.69 and 3,969.72

Step by Step Solution

1. Step 1: Write the proportion equation
   4,191.15 : 5,789.69 = 3,969.72 : x
2. Step 2: Convert to fraction form
   4,191.15/5,789.69 = 3,969.72/x
3. Step 3: Cross multiply
   4,191.15x = 5,789.69 × 3,969.72
4. Step 4: Simplify right side
   4,191.15x = 22,983,414.03
5. Step 5: Solve for x
   x = 22,983,414.03/4,191.15
6. Step 6: Final answer
   x = 5,483.80