Finding the Fourth Proportional to 682,404.84, 1,023,570.32 and 209,091.56

Step by Step Solution

1. Step 1: Write the proportion equation
   682,404.84 : 1,023,570.32 = 209,091.56 : x
2. Step 2: Convert to fraction form
   682,404.84/1,023,570.32 = 209,091.56/x
3. Step 3: Cross multiply
   682,404.84x = 1,023,570.32 × 209,091.56
4. Step 4: Simplify right side
   682,404.84x = 214,019,914,978.50
5. Step 5: Solve for x
   x = 214,019,914,978.50/682,404.84
6. Step 6: Final answer
   x = 313,626.02