What do I have to do in order to set up the following topology and determine what is necessary to ping from PC$1$ to PC$4$ successfully

Addressing Scheme:PC$1$; $172\mathrm{.}16\mathrm{.}40\mathrm{.}10/24$

PC$2$: $172\mathrm{.}16\mathrm{.}10\mathrm{.}10/24$

PC$3$: $172\mathrm{.}16\mathrm{.}50\mathrm{.}10/24$ to switch $1$ interface f$0/3$PC$4$: $172\mathrm{.}16\mathrm{.}50\mathrm{.}254/24$ to switch $1$ interface f$0/4$

Router $1$: Interface Fa$0/1172\mathrm{.}16\mathrm{.}40\mathrm{.}1/24$Router $0$: Interface Fa$0/1172\mathrm{.}16\mathrm{.}10\mathrm{.}1/24$Switch $1$: Interface Fa$0/1172\mathrm{.}16\mathrm{.}50\mathrm{.}1/24$ to Router $2$ interface f$0/1.$Switch $1$: Interface Fa$0/2172\mathrm{.}16\mathrm{.}50\mathrm{.}129/24$ to Router $2$ interface f$0/2$

Router $1$ to Router $0$ serial interfaces: $172\mathrm{.}16\mathrm{.}20\mathrm{.}1/24$ and $172\mathrm{.}16\mathrm{.}20\mathrm{.}2/24$

Router $1$ to Router $2$ serial interfaces: $172\mathrm{.}16\mathrm{.}30\mathrm{.}1/24$ and $172\mathrm{.}16\mathrm{.}30\mathrm{.}2/24$