Finding the Fourth Proportional to 1,427.29, 1,969.50 and 868.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427.29 : 1,969.50 = 868.06 : x
2. Step 2: Convert to fraction form
   1,427.29/1,969.50 = 868.06/x
3. Step 3: Cross multiply
   1,427.29x = 1,969.50 × 868.06
4. Step 4: Simplify right side
   1,427.29x = 1,709,639.25
5. Step 5: Solve for x
   x = 1,709,639.25/1,427.29
6. Step 6: Final answer
   x = 1,197.82