Huh. Based on this online calculator(https://www.bankofengland.co.uk/monetary-policy/inflation/inflation-calculator), if i earn £5000 everyday in 1493(Cuntopher Columbus start his slave trading voyage in 1492 i think), i would have £1,825,000, which in today money is roughly £1,813,589,780.47, that's just for a single year.
Yes, under those conditions you'd have about $969 million:
531 years since 1493. $5000 x 365 = $1825000 per year x 531 = $969,075,000
According to this article Jeff Bezos makes $595,728,000 a week (holy shit), so even if you were Methuselah earning $5000 a day, he'd still have more money than you after two weeks 😱
If you're going to adjust the final amount for inflation then you need to adjust the £5000 for inflation so in 1493 you would only be earning £6 per day.