Finding the Fourth Proportional to 1,093.82, 1,640.75 and 444.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,093.82 : 1,640.75 = 444.15 : x
2. Step 2: Convert to fraction form
   1,093.82/1,640.75 = 444.15/x
3. Step 3: Cross multiply
   1,093.82x = 1,640.75 × 444.15
4. Step 4: Simplify right side
   1,093.82x = 728,736.89
5. Step 5: Solve for x
   x = 728,736.89/1,093.82
6. Step 6: Final answer
   x = 666.23