Finding the Fourth Proportional to 681,301.62, 1,022,389.83 and 456,915.42

Step by Step Solution

1. Step 1: Write the proportion equation
   681,301.62 : 1,022,389.83 = 456,915.42 : x
2. Step 2: Convert to fraction form
   681,301.62/1,022,389.83 = 456,915.42/x
3. Step 3: Cross multiply
   681,301.62x = 1,022,389.83 × 456,915.42
4. Step 4: Simplify right side
   681,301.62x = 467,145,678,578.18
5. Step 5: Solve for x
   x = 467,145,678,578.18/681,301.62
6. Step 6: Final answer
   x = 685,666.47