Finding the Fourth Proportional to 2,105,657, 2,905,808.59 and 1,138,787.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,657 : 2,905,808.59 = 1,138,787.29 : x
2. Step 2: Convert to fraction form
   2,105,657/2,905,808.59 = 1,138,787.29/x
3. Step 3: Cross multiply
   2,105,657x = 2,905,808.59 × 1,138,787.29
4. Step 4: Simplify right side
   2,105,657x = 3,309,097,874,935.78
5. Step 5: Solve for x
   x = 3,309,097,874,935.78/2,105,657
6. Step 6: Final answer
   x = 1,571,527.50