Finding the Fourth Proportional to 1,308.95, 1,960.82 and 789.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,308.95 : 1,960.82 = 789.08 : x
2. Step 2: Convert to fraction form
   1,308.95/1,960.82 = 789.08/x
3. Step 3: Cross multiply
   1,308.95x = 1,960.82 × 789.08
4. Step 4: Simplify right side
   1,308.95x = 1,547,250.72
5. Step 5: Solve for x
   x = 1,547,250.72/1,308.95
6. Step 6: Final answer
   x = 1,182.06