Finding the Fourth Proportional to 2,086.11, 2,878.80 and 1,141.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086.11 : 2,878.80 = 1,141.88 : x
2. Step 2: Convert to fraction form
   2,086.11/2,878.80 = 1,141.88/x
3. Step 3: Cross multiply
   2,086.11x = 2,878.80 × 1,141.88
4. Step 4: Simplify right side
   2,086.11x = 3,287,225.47
5. Step 5: Solve for x
   x = 3,287,225.47/2,086.11
6. Step 6: Final answer
   x = 1,575.77