Finding the Fourth Proportional to 664,834.72, 997,614.96 and 384,898.72

Step by Step Solution

1. Step 1: Write the proportion equation
   664,834.72 : 997,614.96 = 384,898.72 : x
2. Step 2: Convert to fraction form
   664,834.72/997,614.96 = 384,898.72/x
3. Step 3: Cross multiply
   664,834.72x = 997,614.96 × 384,898.72
4. Step 4: Simplify right side
   664,834.72x = 383,980,721,156.85
5. Step 5: Solve for x
   x = 383,980,721,156.85/664,834.72
6. Step 6: Final answer
   x = 577,558.17