1. The problem is to add the numbers 506065.00, 341906.69, 219516.18, 126456.24, and 63857.23. 2. Write down the numbers vertically to add them easily: $$506065.00 \\ 341906.69 \\ 219516.18 \\ 126456.24 \\ 63857.23$$ 3. Add the numbers starting from right to left (units to the left): $$506065.00 + 341906.69 = 847971.69$$ $$847971.69 + 219516.18 = 1067487.87$$ $$1067487.87 + 126456.24 = 1193944.11$$ $$1193944.11 + 63857.23 = 1257801.34$$ 4. The total sum is $$1257801.34$$. 5. Therefore, the final answer is $$1257801.34$$.