CREATE TABLE table_26845668_1 (production_code VARCHAR, us_viewers__millions_ VARCHAR)

What is the production code for the movie with 4.32 million U.S. viewers?
SELECT production_code FROM table_26845668_1 WHERE us_viewers__millions_ = "4.32"
SELECT "production_code" FROM "table_26845668_1" WHERE "4.32" = "us_viewers__millions_"