Finding the Fourth Proportional to 2,398,405.05, 3,309,807.57 and 1,310,676.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,398,405.05 : 3,309,807.57 = 1,310,676.78 : x
2. Step 2: Convert to fraction form
   2,398,405.05/3,309,807.57 = 1,310,676.78/x
3. Step 3: Cross multiply
   2,398,405.05x = 3,309,807.57 × 1,310,676.78
4. Step 4: Simplify right side
   2,398,405.05x = 4,338,087,928,267.22
5. Step 5: Solve for x
   x = 4,338,087,928,267.22/2,398,405.05
6. Step 6: Final answer
   x = 1,808,738.66