Finding the Fourth Proportional to 686,892.05, 1,029,610.88 and 231,049.34

Step by Step Solution

1. Step 1: Write the proportion equation
   686,892.05 : 1,029,610.88 = 231,049.34 : x
2. Step 2: Convert to fraction form
   686,892.05/1,029,610.88 = 231,049.34/x
3. Step 3: Cross multiply
   686,892.05x = 1,029,610.88 × 231,049.34
4. Step 4: Simplify right side
   686,892.05x = 237,890,907,977.52
5. Step 5: Solve for x
   x = 237,890,907,977.52/686,892.05
6. Step 6: Final answer
   x = 346,329.39