Beta Enterprise manufactures a variety of fabrics. The Weaving Department had 1919 units in work in process on 1 September 2022, which were 20 per cent complete as to conversion costs. During September, 8800 units were completed and transferred out of the Weaving Department. On 30 September, 4041 units remained in work in process which were 50 per cent complete as to conversion costs. Using the first-in-first-out (FIFO) method of process costing, calculate the Weaving Department's equivalent units of conversion costs for the month of September 2022.