Finding the Fourth Proportional to 897,499.25, 1,238,553.02 and 489,599.82

Step by Step Solution

1. Step 1: Write the proportion equation
   897,499.25 : 1,238,553.02 = 489,599.82 : x
2. Step 2: Convert to fraction form
   897,499.25/1,238,553.02 = 489,599.82/x
3. Step 3: Cross multiply
   897,499.25x = 1,238,553.02 × 489,599.82
4. Step 4: Simplify right side
   897,499.25x = 606,395,333,204.46
5. Step 5: Solve for x
   x = 606,395,333,204.46/897,499.25
6. Step 6: Final answer
   x = 675,649.96