Finding the Fourth Proportional to 897,005.98, 1,237,822.73 and 489,104.53

Step by Step Solution

1. Step 1: Write the proportion equation
   897,005.98 : 1,237,822.73 = 489,104.53 : x
2. Step 2: Convert to fraction form
   897,005.98/1,237,822.73 = 489,104.53/x
3. Step 3: Cross multiply
   897,005.98x = 1,237,822.73 × 489,104.53
4. Step 4: Simplify right side
   897,005.98x = 605,424,700,874.03
5. Step 5: Solve for x
   x = 605,424,700,874.03/897,005.98
6. Step 6: Final answer
   x = 674,939.42