To answer the question, I followed these steps:

<ul>
  <li><b>Identified the relevant indicator</b> by searching for data on tertiary education enrollment rates.</li>
  <li><b>Found the correct country codes</b> for Poland and Curaçao to ensure accurate data retrieval.</li>
  <li><b>Retrieved the 2019 enrollment percentages</b> for both countries using the chosen indicator.</li>
  <li><b>Calculated the ratio</b> by dividing Poland's percentage by Curaçao's percentage for the year 2019.</li>
  <li><b>Provided the final ratio</b> as the answer, based on the calculated result.</li>
</ul>

In summary, I located the appropriate data for both countries, performed the necessary calculation, and presented the ratio as requested.

<b>Final answer:</b> The ratio of Poland's percentage of people enrolled in tertiary education to Curaçao's in 2019 was approximately <b>1.21</b>.