Finding the Fourth Proportional to 2,721.99, 4,083.51 and 1,241.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,721.99 : 4,083.51 = 1,241.31 : x
2. Step 2: Convert to fraction form
   2,721.99/4,083.51 = 1,241.31/x
3. Step 3: Cross multiply
   2,721.99x = 4,083.51 × 1,241.31
4. Step 4: Simplify right side
   2,721.99x = 5,068,901.80
5. Step 5: Solve for x
   x = 5,068,901.80/2,721.99
6. Step 6: Final answer
   x = 1,862.20