Fashion retailer Supergroup said it was confident to meet its full-year guidance, on the back of an increase in sales in the fourth quarter.In the 15 weeks to 25 April, revenue rose 18.4% year-on-year to £134.8m, while revenue for the full-year climbed 12.5% to £484.7m.FTSE 250-listed Supergroup reported a strong performance in its retail division, following "clearance activity" in the previous quarter, while it expected margin in the fourth quarter to have improved slightly.However, the group forecast second half margins to have declined marginally compared to the same period in 2014, as the group annualised the acquisition of European agents.The owner of the Superdry label said it expect its annual profit to remain in line with previous guidance of between £60m and £65m."The group traded robustly throughout the final quarter," said chief executive Euan Sutherland."Our focus remains on the creation of a global lifestyle brand, through the extension of the Superdry brand and execution of clear retail growth opportunities."Analysts at Canaccord Genuity raised their target price 3% to 1,145p, leaving their forecast unchanged.Supergroup shares were up 4.61% to 1,043.00p at 09:19 on Tuesday.