A violin string which is 30.4 cm long is tuned so that its pitch is concert A, which is 440 Hz. I can effectively shorten the string by placing my finger on it and pressing down. How far (cm) from the end of the string should I put my finger if I want the pitch of the note to be 539 Hz? (Give the distance from the end where the wooden tuning pegs are located.) Assume that the tension in the string remains the same. Give the answer to 2 significant figures.