Finding the Fourth Proportional to 2,287.86, 3,444.67 and 2,086.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,287.86 : 3,444.67 = 2,086.47 : x
2. Step 2: Convert to fraction form
   2,287.86/3,444.67 = 2,086.47/x
3. Step 3: Cross multiply
   2,287.86x = 3,444.67 × 2,086.47
4. Step 4: Simplify right side
   2,287.86x = 7,187,200.61
5. Step 5: Solve for x
   x = 7,187,200.61/2,287.86
6. Step 6: Final answer
   x = 3,141.45