Finding the Fourth Proportional to 522,802.48, 780,662.52 and 414,976.72

Step by Step Solution

1. Step 1: Write the proportion equation
   522,802.48 : 780,662.52 = 414,976.72 : x
2. Step 2: Convert to fraction form
   522,802.48/780,662.52 = 414,976.72/x
3. Step 3: Cross multiply
   522,802.48x = 780,662.52 × 414,976.72
4. Step 4: Simplify right side
   522,802.48x = 323,956,771,976.53
5. Step 5: Solve for x
   x = 323,956,771,976.53/522,802.48
6. Step 6: Final answer
   x = 619,654.24