Finding the Fourth Proportional to 2,105,749.98, 3,158,846.28 and 685,916.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,749.98 : 3,158,846.28 = 685,916.73 : x
2. Step 2: Convert to fraction form
   2,105,749.98/3,158,846.28 = 685,916.73/x
3. Step 3: Cross multiply
   2,105,749.98x = 3,158,846.28 × 685,916.73
4. Step 4: Simplify right side
   2,105,749.98x = 2,166,705,510,950.26
5. Step 5: Solve for x
   x = 2,166,705,510,950.26/2,105,749.98
6. Step 6: Final answer
   x = 1,028,947.18