Finding the Fourth Proportional to 1,343.71, 1,854.34 and 754.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.71 : 1,854.34 = 754.23 : x
2. Step 2: Convert to fraction form
   1,343.71/1,854.34 = 754.23/x
3. Step 3: Cross multiply
   1,343.71x = 1,854.34 × 754.23
4. Step 4: Simplify right side
   1,343.71x = 1,398,598.86
5. Step 5: Solve for x
   x = 1,398,598.86/1,343.71
6. Step 6: Final answer
   x = 1,040.85