Finding the Fourth Proportional to 831,868.16, 1,147,978.82 and 449,894.94

Step by Step Solution

1. Step 1: Write the proportion equation
   831,868.16 : 1,147,978.82 = 449,894.94 : x
2. Step 2: Convert to fraction form
   831,868.16/1,147,978.82 = 449,894.94/x
3. Step 3: Cross multiply
   831,868.16x = 1,147,978.82 × 449,894.94
4. Step 4: Simplify right side
   831,868.16x = 516,469,862,345.17
5. Step 5: Solve for x
   x = 516,469,862,345.17/831,868.16
6. Step 6: Final answer
   x = 620,855.43