Finding the Fourth Proportional to 1,456.98, 2,180.33 and 909.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456.98 : 2,180.33 = 909.42 : x
2. Step 2: Convert to fraction form
   1,456.98/2,180.33 = 909.42/x
3. Step 3: Cross multiply
   1,456.98x = 2,180.33 × 909.42
4. Step 4: Simplify right side
   1,456.98x = 1,982,835.71
5. Step 5: Solve for x
   x = 1,982,835.71/1,456.98
6. Step 6: Final answer
   x = 1,360.92