Finding the Fourth Proportional to 726,499.01, 1,089,737.55 and 326,857.56

Step by Step Solution

1. Step 1: Write the proportion equation
   726,499.01 : 1,089,737.55 = 326,857.56 : x
2. Step 2: Convert to fraction form
   726,499.01/1,089,737.55 = 326,857.56/x
3. Step 3: Cross multiply
   726,499.01x = 1,089,737.55 × 326,857.56
4. Step 4: Simplify right side
   726,499.01x = 356,188,956,633.38
5. Step 5: Solve for x
   x = 356,188,956,633.38/726,499.01
6. Step 6: Final answer
   x = 490,281.41