Finding the Fourth Proportional to 2,081,105.10, 3,120,390.45 and 817,418.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081,105.10 : 3,120,390.45 = 817,418.70 : x
2. Step 2: Convert to fraction form
   2,081,105.10/3,120,390.45 = 817,418.70/x
3. Step 3: Cross multiply
   2,081,105.10x = 3,120,390.45 × 817,418.70
4. Step 4: Simplify right side
   2,081,105.10x = 2,550,665,505,131.42
5. Step 5: Solve for x
   x = 2,550,665,505,131.42/2,081,105.10
6. Step 6: Final answer
   x = 1,225,630.32