Finding the Fourth Proportional to 597,200.50, 824,136.69 and 328,928.50

Step by Step Solution

1. Step 1: Write the proportion equation
   597,200.50 : 824,136.69 = 328,928.50 : x
2. Step 2: Convert to fraction form
   597,200.50/824,136.69 = 328,928.50/x
3. Step 3: Cross multiply
   597,200.50x = 824,136.69 × 328,928.50
4. Step 4: Simplify right side
   597,200.50x = 271,082,045,236.67
5. Step 5: Solve for x
   x = 271,082,045,236.67/597,200.50
6. Step 6: Final answer
   x = 453,921.33