Finding the Fourth Proportional to 2,391.69, 3,300.63 and 1,343.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,391.69 : 3,300.63 = 1,343.75 : x
2. Step 2: Convert to fraction form
   2,391.69/3,300.63 = 1,343.75/x
3. Step 3: Cross multiply
   2,391.69x = 3,300.63 × 1,343.75
4. Step 4: Simplify right side
   2,391.69x = 4,435,221.56
5. Step 5: Solve for x
   x = 4,435,221.56/2,391.69
6. Step 6: Final answer
   x = 1,854.43