Finding the Fourth Proportional to 1,348.84, 1,861.10 and 789.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,348.84 : 1,861.10 = 789.29 : x
2. Step 2: Convert to fraction form
   1,348.84/1,861.10 = 789.29/x
3. Step 3: Cross multiply
   1,348.84x = 1,861.10 × 789.29
4. Step 4: Simplify right side
   1,348.84x = 1,468,938.31
5. Step 5: Solve for x
   x = 1,468,938.31/1,348.84
6. Step 6: Final answer
   x = 1,089.04