Finding the Fourth Proportional to 1,427.93, 1,970.68 and 868.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427.93 : 1,970.68 = 868.27 : x
2. Step 2: Convert to fraction form
   1,427.93/1,970.68 = 868.27/x
3. Step 3: Cross multiply
   1,427.93x = 1,970.68 × 868.27
4. Step 4: Simplify right side
   1,427.93x = 1,711,082.32
5. Step 5: Solve for x
   x = 1,711,082.32/1,427.93
6. Step 6: Final answer
   x = 1,198.30