Assume that in the first year of operation, Ning Co. Ltd. Had three issues of com mon shares. The first 2,000,000 shares existed in the company from January 1 u ntil the year end. The second 1,800,000 shares were issued at the beginning of t he third quarters. In the last quarter of the year, another 1,200,000 shares were is sued. Compute the weighted average number of shares outstanding in the busine SS.