Finding the Fourth Proportional to 3,608,673.48, 4,978,743.26 and 2,058,821.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,608,673.48 : 4,978,743.26 = 2,058,821.78 : x
2. Step 2: Convert to fraction form
   3,608,673.48/4,978,743.26 = 2,058,821.78/x
3. Step 3: Cross multiply
   3,608,673.48x = 4,978,743.26 × 2,058,821.78
4. Step 4: Simplify right side
   3,608,673.48x = 10,250,345,025,528.38
5. Step 5: Solve for x
   x = 10,250,345,025,528.38/3,608,673.48
6. Step 6: Final answer
   x = 2,840,474.51