Finding the Fourth Proportional to 2,181,716.78, 3,268,113.69 and 1,778,346.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,181,716.78 : 3,268,113.69 = 1,778,346.50 : x
2. Step 2: Convert to fraction form
   2,181,716.78/3,268,113.69 = 1,778,346.50/x
3. Step 3: Cross multiply
   2,181,716.78x = 3,268,113.69 × 1,778,346.50
4. Step 4: Simplify right side
   2,181,716.78x = 5,811,838,542,213.59
5. Step 5: Solve for x
   x = 5,811,838,542,213.59/2,181,716.78
6. Step 6: Final answer
   x = 2,663,883.14