Finding the Fourth Proportional to 797.72, 1,100.83 and 443.61

Step by Step Solution

1. Step 1: Write the proportion equation
   797.72 : 1,100.83 = 443.61 : x
2. Step 2: Convert to fraction form
   797.72/1,100.83 = 443.61/x
3. Step 3: Cross multiply
   797.72x = 1,100.83 × 443.61
4. Step 4: Simplify right side
   797.72x = 488,342.22
5. Step 5: Solve for x
   x = 488,342.22/797.72
6. Step 6: Final answer
   x = 612.17