A 1.99 kg particle has the xy coordinates (-1.93 m, 0.399 m), and a 5.39 kg particle has the xy coordinates (0.993 m, -0.719 m). Both lie on a horizontal plane. At what (a) x and (b) y coordinates must you place a 4.09 kg particle such that the center of mass of the three-particle system has the coordinates (-0.691 m, -0.993 m)