Finding the Fourth Proportional to 1,096.12, 1,644.72 and 446.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.12 : 1,644.72 = 446.50 : x
2. Step 2: Convert to fraction form
   1,096.12/1,644.72 = 446.50/x
3. Step 3: Cross multiply
   1,096.12x = 1,644.72 × 446.50
4. Step 4: Simplify right side
   1,096.12x = 734,367.48
5. Step 5: Solve for x
   x = 734,367.48/1,096.12
6. Step 6: Final answer
   x = 669.97