$(1\frac{1}{12} + 1\frac{1}{4}) * 1\frac{19}{56} + 2\frac{5}{8} * 1\frac{3}{7} * 1\frac{1}{9} = (\frac{13}{12} + \frac{5}{4}) * \frac{75}{56} + \frac{21}{8} * \frac{10}{7} * \frac{10}{9} = (\frac{13}{12} + \frac{15}{12}) * \frac{75}{56} + \frac{1}{2} * \frac{5}{1} * \frac{5}{3} = \frac{7}{3} * \frac{75}{56} + 4\frac{1}{6} = \frac{1}{1} * \frac{25}{8} + 4\frac{1}{6} = 3\frac{1}{8} + 4\frac{1}{6} = 3\frac{3}{24} + 4\frac{4}{24} = 7\frac{7}{24}$