Finding the Fourth Proportional to 580,654.89, 801,283.10 and 326,016.81

Step by Step Solution

1. Step 1: Write the proportion equation
   580,654.89 : 801,283.10 = 326,016.81 : x
2. Step 2: Convert to fraction form
   580,654.89/801,283.10 = 326,016.81/x
3. Step 3: Cross multiply
   580,654.89x = 801,283.10 × 326,016.81
4. Step 4: Simplify right side
   580,654.89x = 261,231,758,538.83
5. Step 5: Solve for x
   x = 261,231,758,538.83/580,654.89
6. Step 6: Final answer
   x = 449,891.60