587 is correct, so is 607 and so is 1914. Why do you all make is so difficult?
Jerusalem was destroyed in 587.
Zedekiah was king for 11 years starting in 598.
Jehoikim was king for 11 years starting around610.
Dan 1:1 says "In the third year of the reign of Jehoiakim king of Judah, Nebuchadnezzar king of Babylon came to Jerusalem and besieged it." And Daniel was taken captive.
The 3rd year of Jehoiakim was 607 That started the 70 years of captivity that ended in 537. That also started the 7 times when the kings sitting on the throne of Jehovah would cease being sovereign rulers. That would last 2520 years or 7 times. And that would end in 1914 when Jesus would be sovereign king on Jehovah's throne in heavenly Jerusalem.