Finding the Fourth Proportional to 2,086.05, 2,878.81 and 1,141.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086.05 : 2,878.81 = 1,141.90 : x
2. Step 2: Convert to fraction form
   2,086.05/2,878.81 = 1,141.90/x
3. Step 3: Cross multiply
   2,086.05x = 2,878.81 × 1,141.90
4. Step 4: Simplify right side
   2,086.05x = 3,287,303.09
5. Step 5: Solve for x
   x = 3,287,303.09/2,086.05
6. Step 6: Final answer
   x = 1,575.85