Finding the Fourth Proportional to 7,280.22, 10,920.27 and 2,086.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,280.22 : 10,920.27 = 2,086.10 : x
2. Step 2: Convert to fraction form
   7,280.22/10,920.27 = 2,086.10/x
3. Step 3: Cross multiply
   7,280.22x = 10,920.27 × 2,086.10
4. Step 4: Simplify right side
   7,280.22x = 22,780,775.25
5. Step 5: Solve for x
   x = 22,780,775.25/7,280.22
6. Step 6: Final answer
   x = 3,129.13