Finding the Fourth Proportional to 1,343.68, 1,854.15 and 754.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.68 : 1,854.15 = 754.18 : x
2. Step 2: Convert to fraction form
   1,343.68/1,854.15 = 754.18/x
3. Step 3: Cross multiply
   1,343.68x = 1,854.15 × 754.18
4. Step 4: Simplify right side
   1,343.68x = 1,398,362.85
5. Step 5: Solve for x
   x = 1,398,362.85/1,343.68
6. Step 6: Final answer
   x = 1,040.70