Finding the Fourth Proportional to 3,786.47, 5,228.64 and 3,662.54

Step by Step Solution

1. Step 1: Write the proportion equation
   3,786.47 : 5,228.64 = 3,662.54 : x
2. Step 2: Convert to fraction form
   3,786.47/5,228.64 = 3,662.54/x
3. Step 3: Cross multiply
   3,786.47x = 5,228.64 × 3,662.54
4. Step 4: Simplify right side
   3,786.47x = 19,150,103.15
5. Step 5: Solve for x
   x = 19,150,103.15/3,786.47
6. Step 6: Final answer
   x = 5,057.51