Finding the Fourth Proportional to 1,065.94, 1,470.90 and 786.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,065.94 : 1,470.90 = 786.33 : x
2. Step 2: Convert to fraction form
   1,065.94/1,470.90 = 786.33/x
3. Step 3: Cross multiply
   1,065.94x = 1,470.90 × 786.33
4. Step 4: Simplify right side
   1,065.94x = 1,156,609.25
5. Step 5: Solve for x
   x = 1,156,609.25/1,065.94
6. Step 6: Final answer
   x = 1,085.06