Four particles with charges of +1.00 µC, -2.00 µC, +3.00 µC, and -4.00 µC are located at the points (0, 0), (2.00, 0) cm, (2.00, 4.00) cm, and (0, 4.00) cm, respectively. What are the magnitude and direction of the total force they exert on a particle of charge +5.00 µC located at (1.00, 2.00) cm?