Finding the Fourth Proportional to 1,137.02, 1,705.48 and 443.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,137.02 : 1,705.48 = 443.82 : x
2. Step 2: Convert to fraction form
   1,137.02/1,705.48 = 443.82/x
3. Step 3: Cross multiply
   1,137.02x = 1,705.48 × 443.82
4. Step 4: Simplify right side
   1,137.02x = 756,924.32
5. Step 5: Solve for x
   x = 756,924.32/1,137.02
6. Step 6: Final answer
   x = 665.71