We find the approximate numerical values:
\[ A = \sqrt[3]{2} \approx 1.26, \quad B = \sqrt{3} \approx 1.73, \quad C = \sqrt[4]{5} \approx 1.50, \quad D = \sqrt[6]{7} \approx 1.40 \]
Arranging the surds from least to greatest:
\[ A \approx 1.26, \quad D \approx 1.40, \quad C \approx 1.50, \quad B \approx 1.73 \]
Therefore, the increasing order is:
\[A < D < C < B\]