Finding the Fourth Proportional to 728,001.24, 1,004,345.78 and 483,101.50

Step by Step Solution

1. Step 1: Write the proportion equation
   728,001.24 : 1,004,345.78 = 483,101.50 : x
2. Step 2: Convert to fraction form
   728,001.24/1,004,345.78 = 483,101.50/x
3. Step 3: Cross multiply
   728,001.24x = 1,004,345.78 × 483,101.50
4. Step 4: Simplify right side
   728,001.24x = 485,200,947,910.30
5. Step 5: Solve for x
   x = 485,200,947,910.30/728,001.24
6. Step 6: Final answer
   x = 666,483.68