Finding the Fourth Proportional to 1,166.82, 1,610.17 and 669.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,166.82 : 1,610.17 = 669.43 : x
2. Step 2: Convert to fraction form
   1,166.82/1,610.17 = 669.43/x
3. Step 3: Cross multiply
   1,166.82x = 1,610.17 × 669.43
4. Step 4: Simplify right side
   1,166.82x = 1,077,896.10
5. Step 5: Solve for x
   x = 1,077,896.10/1,166.82
6. Step 6: Final answer
   x = 923.79