Finding the Fourth Proportional to 2,105,449.22, 3,157,844.39 and 685,495.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,449.22 : 3,157,844.39 = 685,495.73 : x
2. Step 2: Convert to fraction form
   2,105,449.22/3,157,844.39 = 685,495.73/x
3. Step 3: Cross multiply
   2,105,449.22x = 3,157,844.39 × 685,495.73
4. Step 4: Simplify right side
   2,105,449.22x = 2,164,688,826,132.75
5. Step 5: Solve for x
   x = 2,164,688,826,132.75/2,105,449.22
6. Step 6: Final answer
   x = 1,028,136.33