Finding the Fourth Proportional to 1,721,576, 2,582,778.72 and 539,624

Step by Step Solution

1. Step 1: Write the proportion equation
   1,721,576 : 2,582,778.72 = 539,624 : x
2. Step 2: Convert to fraction form
   1,721,576/2,582,778.72 = 539,624/x
3. Step 3: Cross multiply
   1,721,576x = 2,582,778.72 × 539,624
4. Step 4: Simplify right side
   1,721,576x = 1,393,729,384,001.28
5. Step 5: Solve for x
   x = 1,393,729,384,001.28/1,721,576
6. Step 6: Final answer
   x = 809,565.99