Finding the Fourth Proportional to 1,096.32, 1,643.86 and 446.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.32 : 1,643.86 = 446.29 : x
2. Step 2: Convert to fraction form
   1,096.32/1,643.86 = 446.29/x
3. Step 3: Cross multiply
   1,096.32x = 1,643.86 × 446.29
4. Step 4: Simplify right side
   1,096.32x = 733,638.28
5. Step 5: Solve for x
   x = 733,638.28/1,096.32
6. Step 6: Final answer
   x = 669.18