Finding the Fourth Proportional to 2,105,581.96, 3,159,617.10 and 776,819.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,581.96 : 3,159,617.10 = 776,819.08 : x
2. Step 2: Convert to fraction form
   2,105,581.96/3,159,617.10 = 776,819.08/x
3. Step 3: Cross multiply
   2,105,581.96x = 3,159,617.10 × 776,819.08
4. Step 4: Simplify right side
   2,105,581.96x = 2,454,450,848,774.27
5. Step 5: Solve for x
   x = 2,454,450,848,774.27/2,105,581.96
6. Step 6: Final answer
   x = 1,165,687.63