Answer: $6.00
Explanation:
The company is to pay Preferred shares $1.50 per quarter.
These are cumulative shares which means that if the company misses a dividend payment, that payment is deferred to a time when they can pay them.
The firm has not paid dividends for the past 3 quarters so if they want to pay Common shareholders a dividend, they will have the clear the backlog of dividends owed to Preference holders.
= Dividends for last 3 quarters + Dividend for current quarter
= (1.5 * 3) + 1.5
= $6.00