Question - Area Calculation of a Quadrilateral Division

Let the total area of the quadrilateral be denoted as \( A \).

The total area can be expressed as the sum of the areas of the four smaller lots:

\( A = A_1 + A_2 + A_3 + A_4 \)

We know the areas of three lots: \( A_1 = 360 \), \( A_2 = 290 \), and \( A_3 = 300 \).

Substituting the known values:

\( A_4 = A - (360 + 290 + 300) \)

Calculating the total of the known areas:

\( A_1 + A_2 + A_3 = 360 + 290 + 300 = 950 \)

Now, since the total area of the quadrilateral is not explicitly given, we can't calculate \( A_4 \) directly without that information. If the total area was provided, it could be computed. Please provide or confirm the total area to find \( A_4 \).