I newbee for NGNIX
i want to know if its posible to use NGINX in this situacion

WAN ISP PROVIDER LAN 192.168.0.X

WAN IP 1 --- NGINX Server|--- WEB SERVER 1 192.168.0.1 WWW.example1.com
|--- WEB SERVER 2 192.168.0.2 www.test.com
|--- WEB SERVER 3 192.168.0.3 www.example2.com

I need to redirect wan traffic that enter by NGNIX SERVER to the corresponding
web server that is in our LAN.

WEB server 1 ( www.example1.com ) is IIS with PHP and CGI
WEB server 2 ( www.test.com ) is IIS with statics html
WEB server 3 ( www.example2.com ) is APACHE with PHP

can someone tell me how to do it

Best reagards in advance