To find the product of 4x6.7, you would have to line them up so that it would be 4(6.7). Parentheses means to multiply, so you would do regular 4x7 for twenty eight, carry the two and multiply 4x6 to get 26 when 24+2 is done. It would be 268. Then, add the decimal as many times it is over from the right, which is one. 26.8 would be the final answer.