Finding the Fourth Proportional to 1,348.98, 1,862.22 and 789.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,348.98 : 1,862.22 = 789.37 : x
2. Step 2: Convert to fraction form
   1,348.98/1,862.22 = 789.37/x
3. Step 3: Cross multiply
   1,348.98x = 1,862.22 × 789.37
4. Step 4: Simplify right side
   1,348.98x = 1,469,980.60
5. Step 5: Solve for x
   x = 1,469,980.60/1,348.98
6. Step 6: Final answer
   x = 1,089.70