Finding the Fourth Proportional to 2,105,713.78, 2,905,885.14 and 1,138,843.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,713.78 : 2,905,885.14 = 1,138,843.81 : x
2. Step 2: Convert to fraction form
   2,105,713.78/2,905,885.14 = 1,138,843.81/x
3. Step 3: Cross multiply
   2,105,713.78x = 2,905,885.14 × 1,138,843.81
4. Step 4: Simplify right side
   2,105,713.78x = 3,309,349,304,259.98
5. Step 5: Solve for x
   x = 3,309,349,304,259.98/2,105,713.78
6. Step 6: Final answer
   x = 1,571,604.52