Finding the Fourth Proportional to 2,280.15, 3,200.85 and 2,280.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,280.15 : 3,200.85 = 2,280.15 : x
2. Step 2: Convert to fraction form
   2,280.15/3,200.85 = 2,280.15/x
3. Step 3: Cross multiply
   2,280.15x = 3,200.85 × 2,280.15
4. Step 4: Simplify right side
   2,280.15x = 7,298,418.13
5. Step 5: Solve for x
   x = 7,298,418.13/2,280.15
6. Step 6: Final answer
   x = 3,200.85