Target has reported higher gains in last year’s holiday sales, largely due to improved e-commerce strategies and store makeovers, and has offered an upbeat outlook for 2019. The company said that its stores fulfilled nearly 75 percent of its fourth-quarter digital sales. Target’s earnings rose 4.5 percent in the final quarter of 2018. The earnings report includes the critical holiday season sales, which increased 5.3 percent. Physical stores open for at least 12 months saw a sales jump of 2.9 percent. Online sales soared 31 percent.