Finding the Fourth Proportional to 7,280.54, 10,922.52 and 2,086.28

Step by Step Solution

1. Step 1: Write the proportion equation
   7,280.54 : 10,922.52 = 2,086.28 : x
2. Step 2: Convert to fraction form
   7,280.54/10,922.52 = 2,086.28/x
3. Step 3: Cross multiply
   7,280.54x = 10,922.52 × 2,086.28
4. Step 4: Simplify right side
   7,280.54x = 22,787,435.03
5. Step 5: Solve for x
   x = 22,787,435.03/7,280.54
6. Step 6: Final answer
   x = 3,129.91