Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_22078972_2 ( no_in_series INTEGER, us_viewers__millions_ VARCHAR )

### Question ###
What's the series number of the episode seen by 17.04 million people in the US?

### Accurate SQL ###

SELECT MAX(no_in_series) FROM table_22078972_2 WHERE us_viewers__millions_ = "17.04"