Finding the Fourth Proportional to 3,870.28, 5,339.04 and 2,297.80

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870.28 : 5,339.04 = 2,297.80 : x
2. Step 2: Convert to fraction form
   3,870.28/5,339.04 = 2,297.80/x
3. Step 3: Cross multiply
   3,870.28x = 5,339.04 × 2,297.80
4. Step 4: Simplify right side
   3,870.28x = 12,268,046.11
5. Step 5: Solve for x
   x = 12,268,046.11/3,870.28
6. Step 6: Final answer
   x = 3,169.81