Finding the Fourth Proportional to 2,828,447.28, 3,905,209.98 and 2,647,757.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,828,447.28 : 3,905,209.98 = 2,647,757.34 : x
2. Step 2: Convert to fraction form
   2,828,447.28/3,905,209.98 = 2,647,757.34/x
3. Step 3: Cross multiply
   2,828,447.28x = 3,905,209.98 × 2,647,757.34
4. Step 4: Simplify right side
   2,828,447.28x = 10,340,048,388,786.25
5. Step 5: Solve for x
   x = 10,340,048,388,786.25/2,828,447.28
6. Step 6: Final answer
   x = 3,655,733.12