Finding the Fourth Proportional to 2,749,896.72, 4,124,369.42 and 728,169.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,749,896.72 : 4,124,369.42 = 728,169.68 : x
2. Step 2: Convert to fraction form
   2,749,896.72/4,124,369.42 = 728,169.68/x
3. Step 3: Cross multiply
   2,749,896.72x = 4,124,369.42 × 728,169.68
4. Step 4: Simplify right side
   2,749,896.72x = 3,003,240,736,500.49
5. Step 5: Solve for x
   x = 3,003,240,736,500.49/2,749,896.72
6. Step 6: Final answer
   x = 1,092,128.56