Uncle Zhang’s orchard harvested a total of 4,800 kilograms of apples last year, and this year’s production has increased by 15% compared to last year. How many kilograms of apples were harvested this year?
张大爷的果园去年共收苹果4800千克，今年比去年增产15%，今年共收苹果多少千克？
<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">1 + (3/20)</gadget>
<output>23/20 = around 1.15</output>

<gadget id="calculator">4_800 * (23/20)</gadget>
<output>5_520</output>

<result>5_520</result>