Fairmount Inc., a developer of radiology equipment, has stock outstanding as follows: 21,000 shares of cumulative preferred 3% stock, $150 par, and 70,000 shares of $15 par common. During its first four years of operations, the following amounts were distributed as dividends: first year, $63,420; second year, $87,990; third year, $172,690; fourth year, $207,200.

Calculate the dividends per share on each class of stock for each of the four years.