\"\"

\

The given sequence is \"\".

\

Observe:                 Each number is formed by adding 3.

\

Find a pattern:     \"\"

\

                               The numbers increase by 3

\

Conjecture:           The next number will increase by 3.

\

                               So, the next number is 4 + 3 = 7.

\

\"\"

\

The next number is 7.