Finding the Fourth Proportional to 582,654.72, 804,078.72 and 328,015.20

Step by Step Solution

1. Step 1: Write the proportion equation
   582,654.72 : 804,078.72 = 328,015.20 : x
2. Step 2: Convert to fraction form
   582,654.72/804,078.72 = 328,015.20/x
3. Step 3: Cross multiply
   582,654.72x = 804,078.72 × 328,015.20
4. Step 4: Simplify right side
   582,654.72x = 263,750,042,156.54
5. Step 5: Solve for x
   x = 263,750,042,156.54/582,654.72
6. Step 6: Final answer
   x = 452,669.54