Finding the Fourth Proportional to 1,348.38, 1,861.04 and 789.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,348.38 : 1,861.04 = 789.14 : x
2. Step 2: Convert to fraction form
   1,348.38/1,861.04 = 789.14/x
3. Step 3: Cross multiply
   1,348.38x = 1,861.04 × 789.14
4. Step 4: Simplify right side
   1,348.38x = 1,468,627.73
5. Step 5: Solve for x
   x = 1,468,627.73/1,348.38
6. Step 6: Final answer
   x = 1,089.18