Redox Reactions

What is the value of '\(\mathrm{x}\)' in order to balance the following redox reaction by ion electron method? \(\quad \mathrm{x} \mathrm{H}_2 \mathrm{O}_2+\mathrm{ClO}_4 \rightarrow \mathrm{xO}_2+\mathrm{ClO}_2+2 \mathrm{H}_2 \mathrm{O}\)