Finding the Fourth Proportional to 590,800.76, 815,300.89 and 322,528.76

Step by Step Solution

1. Step 1: Write the proportion equation
   590,800.76 : 815,300.89 = 322,528.76 : x
2. Step 2: Convert to fraction form
   590,800.76/815,300.89 = 322,528.76/x
3. Step 3: Cross multiply
   590,800.76x = 815,300.89 × 322,528.76
4. Step 4: Simplify right side
   590,800.76x = 262,957,979,389.45
5. Step 5: Solve for x
   x = 262,957,979,389.45/590,800.76
6. Step 6: Final answer
   x = 445,087.41