Predict total cost based on the cost behavior and expected cost driver activity in each of the following cases: 

1. Lease rental fees for hydraulic cranes in a construction company, €5,000 per month per crane for two cranes over four months. 

2. Sales department cost, €8,000 per month plus €4.5 per order delivered at 5,000 orders in one month. 

3. Telephone charges, rental at €500 per month plus €0.20 per call for 10,000 calls during a month. 

4. Private security personnel cost for an Indian Premier League cricket match, €1,250 for each 500 spectators; the authority is expecting 20,000 spectators for the match.