Finding the Fourth Proportional to 2,105,706.49, 2,905,874.96 and 1,138,836.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,706.49 : 2,905,874.96 = 1,138,836.78 : x
2. Step 2: Convert to fraction form
   2,105,706.49/2,905,874.96 = 1,138,836.78/x
3. Step 3: Cross multiply
   2,105,706.49x = 2,905,874.96 × 1,138,836.78
4. Step 4: Simplify right side
   2,105,706.49x = 3,309,317,294,849.61
5. Step 5: Solve for x
   x = 3,309,317,294,849.61/2,105,706.49
6. Step 6: Final answer
   x = 1,571,594.76