Finding the Fourth Proportional to 648,736.83, 973,454.22 and 269,919

Step by Step Solution

1. Step 1: Write the proportion equation
   648,736.83 : 973,454.22 = 269,919 : x
2. Step 2: Convert to fraction form
   648,736.83/973,454.22 = 269,919/x
3. Step 3: Cross multiply
   648,736.83x = 973,454.22 × 269,919
4. Step 4: Simplify right side
   648,736.83x = 262,753,789,608.18
5. Step 5: Solve for x
   x = 262,753,789,608.18/648,736.83
6. Step 6: Final answer
   x = 405,023.70