Four more than the product of three and a number xxx.?

To find the answer, let's break down the information given in the question:

1. The product of three and a number: This means we need to multiply the number (xxx) by 3. So, the product of three and xxx is 3 * xxx or 3xxx.

2. Four more than the product: This means we need to add 4 to the product we just found. So, the final answer is 4 + (3 * xxx), or 4 + 3xxx.

Therefore, the expression "Four more than the product of three and a number xxx" can be written as 4 + 3xxx.