Finding the Fourth Proportional to 2,280.09, 3,418.73 and 2,086.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,280.09 : 3,418.73 = 2,086.73 : x
2. Step 2: Convert to fraction form
   2,280.09/3,418.73 = 2,086.73/x
3. Step 3: Cross multiply
   2,280.09x = 3,418.73 × 2,086.73
4. Step 4: Simplify right side
   2,280.09x = 7,133,966.45
5. Step 5: Solve for x
   x = 7,133,966.45/2,280.09
6. Step 6: Final answer
   x = 3,128.81