Shengpu Central Primary School went to visit "Flying to Space--China Manned Spaceflight Exhibition". A total of 264 students went to the fourth and fifth grades, and the number of fourth graders was 1.2 times that of the fifth graders. How many people went to the fourth grade?
胜浦中心小学去参观"飞向太空--中国载人航天展"．四、五年级一共去了264人，四年级去的人数是五年级的1.2倍．四年级去了多少人？
<gadget id="calculator">1 + 1.2</gadget>
<output>2.2</output>

<gadget id="calculator">264 / 2.2</gadget>
<output>120</output>

<gadget id="calculator">120 * 1.2</gadget>
<output>144</output>

<result>144</result>