Year	Quarter	Sales
2018	1
2018	2
2018	3
2018	4
2019	1
2019	2
2019	3	45
2019	4	44
2020	1	48
2020	2	47

Suppose that Browns exponential smoothing with a smoothing constant of 0.10 was used to forecast sales and the predicted sales value for the first quarter of 2020 is found to be 46.7. Forecast sales for the fourth quarter of 2021.