Finding the Fourth Proportional to 2,258,315.50, 3,116,073.52 and 1,278,249.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,258,315.50 : 3,116,073.52 = 1,278,249.72 : x
2. Step 2: Convert to fraction form
   2,258,315.50/3,116,073.52 = 1,278,249.72/x
3. Step 3: Cross multiply
   2,258,315.50x = 3,116,073.52 × 1,278,249.72
4. Step 4: Simplify right side
   2,258,315.50x = 3,983,120,104,439.41
5. Step 5: Solve for x
   x = 3,983,120,104,439.41/2,258,315.50
6. Step 6: Final answer
   x = 1,763,757.15