Finding the Fourth Proportional to 1,096.94, 1,645.42 and 480.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.94 : 1,645.42 = 480.18 : x
2. Step 2: Convert to fraction form
   1,096.94/1,645.42 = 480.18/x
3. Step 3: Cross multiply
   1,096.94x = 1,645.42 × 480.18
4. Step 4: Simplify right side
   1,096.94x = 790,097.78
5. Step 5: Solve for x
   x = 790,097.78/1,096.94
6. Step 6: Final answer
   x = 720.27