Finding the Fourth Proportional to 1,343.89, 1,854.61 and 754.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.89 : 1,854.61 = 754.45 : x
2. Step 2: Convert to fraction form
   1,343.89/1,854.61 = 754.45/x
3. Step 3: Cross multiply
   1,343.89x = 1,854.61 × 754.45
4. Step 4: Simplify right side
   1,343.89x = 1,399,210.51
5. Step 5: Solve for x
   x = 1,399,210.51/1,343.89
6. Step 6: Final answer
   x = 1,041.16