Finding the Fourth Proportional to 2,013,910.72, 3,020,874 and 815,855.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,013,910.72 : 3,020,874 = 815,855.68 : x
2. Step 2: Convert to fraction form
   2,013,910.72/3,020,874 = 815,855.68/x
3. Step 3: Cross multiply
   2,013,910.72x = 3,020,874 × 815,855.68
4. Step 4: Simplify right side
   2,013,910.72x = 2,464,597,211,464.32
5. Step 5: Solve for x
   x = 2,464,597,211,464.32/2,013,910.72
6. Step 6: Final answer
   x = 1,223,786.73