Ответ:

\[4\frac{1}{3}=\frac{13}{3},\qquad 1\frac{11}{52}=\frac{63}{52}.\]

\[\frac{13}{3}\cdot\frac{63}{52}=\frac{13\cdot63}{3\cdot52}=\frac{63}{12}=\frac{21}{4}=5\frac{1}{4}.\]

Ответ: \(5\frac{1}{4}\).