Finding the Fourth Proportional to 1,348.27, 1,860.74 and 789.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,348.27 : 1,860.74 = 789.01 : x
2. Step 2: Convert to fraction form
   1,348.27/1,860.74 = 789.01/x
3. Step 3: Cross multiply
   1,348.27x = 1,860.74 × 789.01
4. Step 4: Simplify right side
   1,348.27x = 1,468,142.47
5. Step 5: Solve for x
   x = 1,468,142.47/1,348.27
6. Step 6: Final answer
   x = 1,088.91