Finding the Fourth Proportional to 2,391.91, 3,300.77 and 1,343.97

Step by Step Solution

1. Step 1: Write the proportion equation
   2,391.91 : 3,300.77 = 1,343.97 : x
2. Step 2: Convert to fraction form
   2,391.91/3,300.77 = 1,343.97/x
3. Step 3: Cross multiply
   2,391.91x = 3,300.77 × 1,343.97
4. Step 4: Simplify right side
   2,391.91x = 4,436,139.22
5. Step 5: Solve for x
   x = 4,436,139.22/2,391.91
6. Step 6: Final answer
   x = 1,854.64