Finding the Fourth Proportional to 3,668.28, 5,475.78 and 3,397.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,668.28 : 5,475.78 = 3,397.94 : x
2. Step 2: Convert to fraction form
   3,668.28/5,475.78 = 3,397.94/x
3. Step 3: Cross multiply
   3,668.28x = 5,475.78 × 3,397.94
4. Step 4: Simplify right side
   3,668.28x = 18,606,371.89
5. Step 5: Solve for x
   x = 18,606,371.89/3,668.28
6. Step 6: Final answer
   x = 5,072.23