Finding the Fourth Proportional to 864,404.50, 1,296,614.04 and 303,439

Step by Step Solution

1. Step 1: Write the proportion equation
   864,404.50 : 1,296,614.04 = 303,439 : x
2. Step 2: Convert to fraction form
   864,404.50/1,296,614.04 = 303,439/x
3. Step 3: Cross multiply
   864,404.50x = 1,296,614.04 × 303,439
4. Step 4: Simplify right side
   864,404.50x = 393,443,267,683.56
5. Step 5: Solve for x
   x = 393,443,267,683.56/864,404.50
6. Step 6: Final answer
   x = 455,161.06