Freezing point depression

When $0.412$ g of $\text{K}_{3}\text{Fe(CN)}_{6}$ is dissolved in $100.0$ g of water, what is the freezing point of the solution?

Assume that $\text{K}_{3}\text{Fe(CN)}_{6}$ is fully dissolved in the water.
Use the freezing point depression constant $K_{f} = 1.86$ K kg/mol.