title: Formula to find matching row value based on cells in multiple columns
body: <p>I am trying to lookup a col4 value when, in the same row, col1, col2 and col3 each match.</p>
  
  <p>I referenced this <a href="https://i.stack.imgur.com/YDaBP.png" rel="nofollow noreferrer">SO Post</a> as it is a similar question but that solution is not working for me.</p>
  
  <p>I am searching for specific <code>Source</code>s, on specific <code>Date</code>s, with specific <code>Status</code>s and want to return the corresponding <code>Count</code>s.  </p>
  
  <p>My data with examples  of output required:  </p>
  
  <p><img src="https://i.stack.imgur.com/lSH2t.png" alt="ReuploadedImage"></p>