A column 300 x 300 mm supports a dead load of 948 kN and a live load of 744 kN. The allowable soil bearing pressure is 262 kPa. The base of the footing is 1.7 m below the grade. Assume weight of concrete is 23.4 kN/m³ and that of soil is 16.9 kN/m³. Total depth of footing is 579 mm and has an effective depth of 461 mm. Determine the dimension of the square footing in meters "m". Tip: avoid rounding off the values during the solution, use shift store function of calculators to get the correct answer in 3 decimal places. Note: Input the exact value/dimension in 3 decimal places.