Finding the Fourth Proportional to 1,166.23, 1,609.32 and 668.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,166.23 : 1,609.32 = 668.83 : x
2. Step 2: Convert to fraction form
   1,166.23/1,609.32 = 668.83/x
3. Step 3: Cross multiply
   1,166.23x = 1,609.32 × 668.83
4. Step 4: Simplify right side
   1,166.23x = 1,076,361.50
5. Step 5: Solve for x
   x = 1,076,361.50/1,166.23
6. Step 6: Final answer
   x = 922.94