Look at the differences between consecutive numbers.<br><br>
&bull; 3 &minus; 1 = 2<br>
&bull; The pattern increases by 2 each step: odd numbers.<br>
&bull; After 3, add 2: 3 + 2 = 5<br>
&bull; Check: 5 + 2 = 7, 7 + 2 = 9, 9 + 2 = 11 &#10003;<br><br>
Final Answer: 5