The "Shenzhou VII", which has just successfully completed its manned flight in my country, can fly around the earth in 90 minutes. Its flying speed is about 28122000 meters per hour. Please do the math, the distance that Shenzhou VII flies around the earth is about How many thousands of kilometers.
我国刚刚载人飞行圆满成功的"神舟七号"90分钟就可以绕地球飞行一圈，它每小时的飞行速度大约有28122000米，请算一算，神舟七号绕地球飞行一圈的距离约有多少万千米．
<result>4.2183</result>