Finding the Fourth Proportional to 2,275,208.35, 3,139,782.45 and 1,308,338.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,275,208.35 : 3,139,782.45 = 1,308,338.72 : x
2. Step 2: Convert to fraction form
   2,275,208.35/3,139,782.45 = 1,308,338.72/x
3. Step 3: Cross multiply
   2,275,208.35x = 3,139,782.45 × 1,308,338.72
4. Step 4: Simplify right side
   2,275,208.35x = 4,107,898,951,711.46
5. Step 5: Solve for x
   x = 4,107,898,951,711.46/2,275,208.35
6. Step 6: Final answer
   x = 1,805,504.52