Converting a float to a byte[]? Not working

Okay, so all I simply need is to convert float (e.g 3.422) and turn it into a byte[].

I need this because I am sending the byte as data for real time multiplayer. Everywhere I look online just have really complicated and different answers. I just need a simple way to convert my float into a byte array.

At present, I am using this:

float f = transform.position.y;
	MemoryStream stream = new MemoryStream();
	BinaryWriter bw = new BinaryWriter(stream);

	byte[] floatBytes = stream.ToArray();
	bool reliable = true;
	PlayGamesPlatform.Instance.RealTime.SendMessageToAll (reliable, floatBytes);

But i dont know how to read this later on. So far I have:

MemoryStream stream = new MemoryStream ();
BinaryReader reader = new BinaryReader (stream);

But I don’t know what do do from there.

Any help is greatly appreciated, thanks.

Use float value = reader.ReadSingle();

Use C#'s BitConverter class: