drier electrical plug

I have a hotpoint drier with a 3 prong cable and plug, male. The center is aparently ground. I have a 4 hole (female) receptacle. I disconnected the 3 wires from the drier's 3 screws, which connect to the 3 prongs of the plug. I will exchange the 3 prong plug and cable for 4 prong plug and cable. How do I connect the 4 prong cable to the 3 termials on the drier?

 

There should be instructions with the dryer.
This may help you: http://www.applianceaid.com/general.html#3to4

 

If you only have 3 wires in the wall the receptacle and cord both need to be 3 wire. You can only install the 4 wire cord and receptacle if you have 4 wires in the wall.

With the 4 wire setup a bonding jumper needs to be removed from the neutral terminal on the dryer.