By this question what we have to find isn't clear. If you have scientific calculator then you can calculate it easily.

Now if you have been provided the values of log or log table for small values is provided and you need to find the value of x then you can find the product and division of the numbers provided and the value you will get by comparision will be the value of x. i.e., for the given case, x = 2.389×0.004679/0.0056 = 1.99 ~ 2.

If this didn't clear you query then I would recommend you to repost the question again on career360.com (//career360.com) qna section with proper details so that we can understand the question and can help you out.

I hope this answer helps. All the very best for your future endeavors!