Finding the Fourth Proportional to 3,786.88, 5,674.56 and 3,394.24

Step by Step Solution

1. Step 1: Write the proportion equation
   3,786.88 : 5,674.56 = 3,394.24 : x
2. Step 2: Convert to fraction form
   3,786.88/5,674.56 = 3,394.24/x
3. Step 3: Cross multiply
   3,786.88x = 5,674.56 × 3,394.24
4. Step 4: Simplify right side
   3,786.88x = 19,260,818.53
5. Step 5: Solve for x
   x = 19,260,818.53/3,786.88
6. Step 6: Final answer
   x = 5,086.20