Finding the Fourth Proportional to 7,086.27, 10,630.80 and 2,928.54

Step by Step Solution

1. Step 1: Write the proportion equation
   7,086.27 : 10,630.80 = 2,928.54 : x
2. Step 2: Convert to fraction form
   7,086.27/10,630.80 = 2,928.54/x
3. Step 3: Cross multiply
   7,086.27x = 10,630.80 × 2,928.54
4. Step 4: Simplify right side
   7,086.27x = 31,132,723.03
5. Step 5: Solve for x
   x = 31,132,723.03/7,086.27
6. Step 6: Final answer
   x = 4,393.39