Finding the Fourth Proportional to 1,137.25, 1,705.42 and 443.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,137.25 : 1,705.42 = 443.82 : x
2. Step 2: Convert to fraction form
   1,137.25/1,705.42 = 443.82/x
3. Step 3: Cross multiply
   1,137.25x = 1,705.42 × 443.82
4. Step 4: Simplify right side
   1,137.25x = 756,897.29
5. Step 5: Solve for x
   x = 756,897.29/1,137.25
6. Step 6: Final answer
   x = 665.55