Finding the Fourth Proportional to 1,083.94, 1,495.83 and 664.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,083.94 : 1,495.83 = 664.24 : x
2. Step 2: Convert to fraction form
   1,083.94/1,495.83 = 664.24/x
3. Step 3: Cross multiply
   1,083.94x = 1,495.83 × 664.24
4. Step 4: Simplify right side
   1,083.94x = 993,590.12
5. Step 5: Solve for x
   x = 993,590.12/1,083.94
6. Step 6: Final answer
   x = 916.65