Finding the Fourth Proportional to 2,633,639.42, 3,950,171.96 and 1,786,155.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,633,639.42 : 3,950,171.96 = 1,786,155.05 : x
2. Step 2: Convert to fraction form
   2,633,639.42/3,950,171.96 = 1,786,155.05/x
3. Step 3: Cross multiply
   2,633,639.42x = 3,950,171.96 × 1,786,155.05
4. Step 4: Simplify right side
   2,633,639.42x = 7,055,619,566,040.76
5. Step 5: Solve for x
   x = 7,055,619,566,040.76/2,633,639.42
6. Step 6: Final answer
   x = 2,679,037.81