To convert the repeating decimal \( x = 0.264\overline{264} \) to a rational number, you will want to eliminate the repeating part. Since the repeat is 3 digits long (264), you can multiply both sides of the equation by 1000.
Thus, you set up the following:
- Let \( x = 0.264\overline{264} \).
- Multiply both sides by 1000:
\[ 1000x = 264.264\overline{264} \]
So, the correct answer is \( 1,000 \).