Finding the Fourth Proportional to 1,349.10, 1,862.06 and 789.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,349.10 : 1,862.06 = 789.82 : x
2. Step 2: Convert to fraction form
   1,349.10/1,862.06 = 789.82/x
3. Step 3: Cross multiply
   1,349.10x = 1,862.06 × 789.82
4. Step 4: Simplify right side
   1,349.10x = 1,470,683.62
5. Step 5: Solve for x
   x = 1,470,683.62/1,349.10
6. Step 6: Final answer
   x = 1,090.12