Finding the Fourth Proportional to 1,096.91, 1,644.43 and 480.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.91 : 1,644.43 = 480.14 : x
2. Step 2: Convert to fraction form
   1,096.91/1,644.43 = 480.14/x
3. Step 3: Cross multiply
   1,096.91x = 1,644.43 × 480.14
4. Step 4: Simplify right side
   1,096.91x = 789,559.53
5. Step 5: Solve for x
   x = 789,559.53/1,096.91
6. Step 6: Final answer
   x = 719.81