Finding the Fourth Proportional to 2,181,760.38, 3,268,178.82 and 1,778,390.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,181,760.38 : 3,268,178.82 = 1,778,390.10 : x
2. Step 2: Convert to fraction form
   2,181,760.38/3,268,178.82 = 1,778,390.10/x
3. Step 3: Cross multiply
   2,181,760.38x = 3,268,178.82 × 1,778,390.10
4. Step 4: Simplify right side
   2,181,760.38x = 5,812,096,858,517.68
5. Step 5: Solve for x
   x = 5,812,096,858,517.68/2,181,760.38
6. Step 6: Final answer
   x = 2,663,948.30