Question 92
Find the sum of the infinite series
$$
1 + 2\left(\frac{1}{1998}\right) + 3\left(\frac{1}{1998}\right)^{2} + 4\left(\frac{1}{1998}\right)^{3} + \ldots
$$
$$
1 + 2\left(\frac{1}{1998}\right) + 3\left(\frac{1}{1998}\right)^{2} + 4\left(\frac{1}{1998}\right)^{3} + \ldots
$$