Arc sound on 4 amp

Hello everyone, I just installed 4 sonos amps in my new house and on one of these I connected the hdmi arc cable to listen to the tv with the sonos system, now I would need to send the arc signal to all the other 3 amps to listen to the TV audio throughout the house. How do you think I can realise this?
Thanks to those who will help me or give me some advice, I'm new to the sonos world