Finding the Fourth Proportional to 1,721,570, 2,582,769.72 and 539,618

Step by Step Solution

1. Step 1: Write the proportion equation
   1,721,570 : 2,582,769.72 = 539,618 : x
2. Step 2: Convert to fraction form
   1,721,570/2,582,769.72 = 539,618/x
3. Step 3: Cross multiply
   1,721,570x = 2,582,769.72 × 539,618
4. Step 4: Simplify right side
   1,721,570x = 1,393,709,030,766.96
5. Step 5: Solve for x
   x = 1,393,709,030,766.96/1,721,570
6. Step 6: Final answer
   x = 809,556.99