Finding the Fourth Proportional to 1,426.60, 1,969.33 and 867.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.60 : 1,969.33 = 867.24 : x
2. Step 2: Convert to fraction form
   1,426.60/1,969.33 = 867.24/x
3. Step 3: Cross multiply
   1,426.60x = 1,969.33 × 867.24
4. Step 4: Simplify right side
   1,426.60x = 1,707,885.86
5. Step 5: Solve for x
   x = 1,707,885.86/1,426.60
6. Step 6: Final answer
   x = 1,197.17