What is the ruling if a fourth son exists in the scenario where one son admits to having an additional brother and sister, and the other brothers provide partial affirmation or denial?

Primary text

If a fourth son exists and does not affirm either the alleged brother or sister, the calculation of shares becomes significantly more complex, involving multiple denominators based on the various affirmations and denials. The final correct resolution for the shares in this case resolves to 1980 shares.