Finding the Fourth Proportional to 3,949.89, 5,927.19 and 2,286.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,949.89 : 5,927.19 = 2,286.15 : x
2. Step 2: Convert to fraction form
   3,949.89/5,927.19 = 2,286.15/x
3. Step 3: Cross multiply
   3,949.89x = 5,927.19 × 2,286.15
4. Step 4: Simplify right side
   3,949.89x = 13,550,445.42
5. Step 5: Solve for x
   x = 13,550,445.42/3,949.89
6. Step 6: Final answer
   x = 3,430.59