Finding the Fourth Proportional to 679,069.83, 937,061.50 and 392,608.38

Step by Step Solution

1. Step 1: Write the proportion equation
   679,069.83 : 937,061.50 = 392,608.38 : x
2. Step 2: Convert to fraction form
   679,069.83/937,061.50 = 392,608.38/x
3. Step 3: Cross multiply
   679,069.83x = 937,061.50 × 392,608.38
4. Step 4: Simplify right side
   679,069.83x = 367,898,197,475.37
5. Step 5: Solve for x
   x = 367,898,197,475.37/679,069.83
6. Step 6: Final answer
   x = 541,767.84