Finding the Fourth Proportional to 1,639,577.34, 2,458,651.72 and 870,906.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,639,577.34 : 2,458,651.72 = 870,906.82 : x
2. Step 2: Convert to fraction form
   1,639,577.34/2,458,651.72 = 870,906.82/x
3. Step 3: Cross multiply
   1,639,577.34x = 2,458,651.72 × 870,906.82
4. Step 4: Simplify right side
   1,639,577.34x = 2,141,256,550,952.73
5. Step 5: Solve for x
   x = 2,141,256,550,952.73/1,639,577.34
6. Step 6: Final answer
   x = 1,305,980.82