Finding the Fourth Proportional to 3,086.43, 4,618.71 and 2,721.93

Step by Step Solution

1. Step 1: Write the proportion equation
   3,086.43 : 4,618.71 = 2,721.93 : x
2. Step 2: Convert to fraction form
   3,086.43/4,618.71 = 2,721.93/x
3. Step 3: Cross multiply
   3,086.43x = 4,618.71 × 2,721.93
4. Step 4: Simplify right side
   3,086.43x = 12,571,805.31
5. Step 5: Solve for x
   x = 12,571,805.31/3,086.43
6. Step 6: Final answer
   x = 4,073.25