Finding the Fourth Proportional to 1,401.97, 1,920.71 and 1,349.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.97 : 1,920.71 = 1,349.43 : x
2. Step 2: Convert to fraction form
   1,401.97/1,920.71 = 1,349.43/x
3. Step 3: Cross multiply
   1,401.97x = 1,920.71 × 1,349.43
4. Step 4: Simplify right side
   1,401.97x = 2,591,854.09
5. Step 5: Solve for x
   x = 2,591,854.09/1,401.97
6. Step 6: Final answer
   x = 1,848.72