Finding the Fourth Proportional to 1,403.97, 1,936.40 and 1,073.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,403.97 : 1,936.40 = 1,073.49 : x
2. Step 2: Convert to fraction form
   1,403.97/1,936.40 = 1,073.49/x
3. Step 3: Cross multiply
   1,403.97x = 1,936.40 × 1,073.49
4. Step 4: Simplify right side
   1,403.97x = 2,078,706.04
5. Step 5: Solve for x
   x = 2,078,706.04/1,403.97
6. Step 6: Final answer
   x = 1,480.59