Finding the Fourth Proportional to 721,096.34, 995,072.72 and 394,344.88

Step by Step Solution

1. Step 1: Write the proportion equation
   721,096.34 : 995,072.72 = 394,344.88 : x
2. Step 2: Convert to fraction form
   721,096.34/995,072.72 = 394,344.88/x
3. Step 3: Cross multiply
   721,096.34x = 995,072.72 × 394,344.88
4. Step 4: Simplify right side
   721,096.34x = 392,401,832,359.67
5. Step 5: Solve for x
   x = 392,401,832,359.67/721,096.34
6. Step 6: Final answer
   x = 544,173.93