Finding the Fourth Proportional to 2,105,802.75, 3,158,925.56 and 685,969.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,802.75 : 3,158,925.56 = 685,969.55 : x
2. Step 2: Convert to fraction form
   2,105,802.75/3,158,925.56 = 685,969.55/x
3. Step 3: Cross multiply
   2,105,802.75x = 3,158,925.56 × 685,969.55
4. Step 4: Simplify right side
   2,105,802.75x = 2,166,926,744,876.70
5. Step 5: Solve for x
   x = 2,166,926,744,876.70/2,105,802.75
6. Step 6: Final answer
   x = 1,029,026.46