\[\boxed{\mathbf{4.149}}\]
\[1)\ 258 \cdot 24 = 6192\]
\[2)\ 6192\ :43 = 144\]
\[3)\ 4590\ :102 = 45\]
\[4)\ 144 + 45 - 20 = 169\]
\[5)\ 169\ :13 = 13\]
\[1)\ 118 \cdot 6 = 708\]
\[2)\ 372 + 708 = 1080\]
\[3)\ 38 \cdot 35 = 1330\]
\[4)\ 34 \cdot 37 = 1258\]
\[5)\ 1330 - 1258 = 72\]
\[6)\ 1080\ :72 = 15\]
\[7)\ 15 - 12 = 3\]