Estimate the weights (wi) for assets in the three portfolios given the following information about the portfolio

Question:

Estimate the weights (wi) for assets in the three portfolios given the following information about the holdings:
Portfolio
A portfolio is a grouping of financial assets such as stocks, bonds, commodities, currencies and cash equivalents, as well as their fund counterparts, including mutual, exchange-traded and closed funds. A portfolio can also consist of non-publicly...