Finding the Fourth Proportional to 1,426.82, 1,969.38 and 867.65

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.82 : 1,969.38 = 867.65 : x
2. Step 2: Convert to fraction form
   1,426.82/1,969.38 = 867.65/x
3. Step 3: Cross multiply
   1,426.82x = 1,969.38 × 867.65
4. Step 4: Simplify right side
   1,426.82x = 1,708,722.71
5. Step 5: Solve for x
   x = 1,708,722.71/1,426.82
6. Step 6: Final answer
   x = 1,197.58