Finding the Fourth Proportional to 3,946.38, 5,434.93 and 3,860.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,946.38 : 5,434.93 = 3,860.27 : x
2. Step 2: Convert to fraction form
   3,946.38/5,434.93 = 3,860.27/x
3. Step 3: Cross multiply
   3,946.38x = 5,434.93 × 3,860.27
4. Step 4: Simplify right side
   3,946.38x = 20,980,297.23
5. Step 5: Solve for x
   x = 20,980,297.23/3,946.38
6. Step 6: Final answer
   x = 5,316.34