Finding the Fourth Proportional to 1,414.40, 1,951.56 and 890.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,414.40 : 1,951.56 = 890.24 : x
2. Step 2: Convert to fraction form
   1,414.40/1,951.56 = 890.24/x
3. Step 3: Cross multiply
   1,414.40x = 1,951.56 × 890.24
4. Step 4: Simplify right side
   1,414.40x = 1,737,356.77
5. Step 5: Solve for x
   x = 1,737,356.77/1,414.40
6. Step 6: Final answer
   x = 1,228.33