Finding the Fourth Proportional to 3,721.82, 5,139.59 and 2,397.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,721.82 : 5,139.59 = 2,397.83 : x
2. Step 2: Convert to fraction form
   3,721.82/5,139.59 = 2,397.83/x
3. Step 3: Cross multiply
   3,721.82x = 5,139.59 × 2,397.83
4. Step 4: Simplify right side
   3,721.82x = 12,323,825.40
5. Step 5: Solve for x
   x = 12,323,825.40/3,721.82
6. Step 6: Final answer
   x = 3,311.24