Finding the Fourth Proportional to 2,386.43, 3,293.42 and 1,338.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,386.43 : 3,293.42 = 1,338.47 : x
2. Step 2: Convert to fraction form
   2,386.43/3,293.42 = 1,338.47/x
3. Step 3: Cross multiply
   2,386.43x = 3,293.42 × 1,338.47
4. Step 4: Simplify right side
   2,386.43x = 4,408,120.71
5. Step 5: Solve for x
   x = 4,408,120.71/2,386.43
6. Step 6: Final answer
   x = 1,847.16