Finding the Fourth Proportional to 2,456,605.36, 3,684,164.46 and 858,870.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456,605.36 : 3,684,164.46 = 858,870.64 : x
2. Step 2: Convert to fraction form
   2,456,605.36/3,684,164.46 = 858,870.64/x
3. Step 3: Cross multiply
   2,456,605.36x = 3,684,164.46 × 858,870.64
4. Step 4: Simplify right side
   2,456,605.36x = 3,164,220,693,841.04
5. Step 5: Solve for x
   x = 3,164,220,693,841.04/2,456,605.36
6. Step 6: Final answer
   x = 1,288,045.99