2 MnCl2 (aq) + 5 NaClO (aq) + 6 NaOH (aq) 2 NaMnO4 (aq) + 3 H2O (l) + 9 NaCl (aq) If 1,542.748 mg of NaMnO4 are produced in this reaction, how many milligrams of NaClO were consumed? Express your answer in units of milligrams using at least three significant figures.