using System;

    using System.Text;              

public class Program

{

    public static void Main()

    {

        var s1 = new byte[] { 0x30, 0xfd, 0x6c, 0x38 };

        var s2 = new byte[] { 0xe0, 0xb6, 0x6c, 0x38 };

        var s3 = new byte[] { 0xf0, 0xa5, 0x6d, 0x38 };

        var s4 = new byte[] { 0x40, 0x0b, 0x6d, 0x38 };

        //Array.Reverse(s1);

        Console.WriteLine(BitConverter.ToSingle(s1, 0) * 1000);

    }

}