Finding the Fourth Proportional to 1,442.22, 1,989.92 and 969.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,442.22 : 1,989.92 = 969.29 : x
2. Step 2: Convert to fraction form
   1,442.22/1,989.92 = 969.29/x
3. Step 3: Cross multiply
   1,442.22x = 1,989.92 × 969.29
4. Step 4: Simplify right side
   1,442.22x = 1,928,794.76
5. Step 5: Solve for x
   x = 1,928,794.76/1,442.22
6. Step 6: Final answer
   x = 1,337.38