Finding the Fourth Proportional to 2,341.38, 3,231.51 and 1,397.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,341.38 : 3,231.51 = 1,397.23 : x
2. Step 2: Convert to fraction form
   2,341.38/3,231.51 = 1,397.23/x
3. Step 3: Cross multiply
   2,341.38x = 3,231.51 × 1,397.23
4. Step 4: Simplify right side
   2,341.38x = 4,515,162.72
5. Step 5: Solve for x
   x = 4,515,162.72/2,341.38
6. Step 6: Final answer
   x = 1,928.42