Finding the Fourth Proportional to 680,844.52, 939,566.82 and 379,049.32

Step by Step Solution

1. Step 1: Write the proportion equation
   680,844.52 : 939,566.82 = 379,049.32 : x
2. Step 2: Convert to fraction form
   680,844.52/939,566.82 = 379,049.32/x
3. Step 3: Cross multiply
   680,844.52x = 939,566.82 × 379,049.32
4. Step 4: Simplify right side
   680,844.52x = 356,142,164,215.56
5. Step 5: Solve for x
   x = 356,142,164,215.56/680,844.52
6. Step 6: Final answer
   x = 523,088.83