AN ORDINANCE APPROVING SUPPLEMENTAL BUDGET NO. 4 OF THE GENERAL FUND AND SUPPLEMENTAL BUDGET NO. 2 OF THE SPECIAL ACCOUNT: CITY ECONOMIC ENTERPRISES, BOTH FOR CALENDAR YEAR 1997, WITH AN ESTIMATED INCOME OF P 28,292,243.00 AND P 1,210,464.00 AGAINST AN ESTIMATED EXPENDITURES OF THE SAME AMOUNT, RESPECTIVELY, TO IMPLEMENT VARIOUS APPROVED APPROPRIATION ORDINANCES