Finding the Fourth Proportional to 2,308,342.72, 3,185,387.76 and 1,289,550.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308,342.72 : 3,185,387.76 = 1,289,550.64 : x
2. Step 2: Convert to fraction form
   2,308,342.72/3,185,387.76 = 1,289,550.64/x
3. Step 3: Cross multiply
   2,308,342.72x = 3,185,387.76 × 1,289,550.64
4. Step 4: Simplify right side
   2,308,342.72x = 4,107,718,824,556.17
5. Step 5: Solve for x
   x = 4,107,718,824,556.17/2,308,342.72
6. Step 6: Final answer
   x = 1,779,509.94