Finding the Fourth Proportional to 2,105,689, 2,905,850.82 and 1,138,819.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,689 : 2,905,850.82 = 1,138,819.30 : x
2. Step 2: Convert to fraction form
   2,105,689/2,905,850.82 = 1,138,819.30/x
3. Step 3: Cross multiply
   2,105,689x = 2,905,850.82 × 1,138,819.30
4. Step 4: Simplify right side
   2,105,689x = 3,309,238,996,736.83
5. Step 5: Solve for x
   x = 3,309,238,996,736.83/2,105,689
6. Step 6: Final answer
   x = 1,571,570.63