Finding the Fourth Proportional to 2,085.91, 2,878.52 and 1,141.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,085.91 : 2,878.52 = 1,141.68 : x
2. Step 2: Convert to fraction form
   2,085.91/2,878.52 = 1,141.68/x
3. Step 3: Cross multiply
   2,085.91x = 2,878.52 × 1,141.68
4. Step 4: Simplify right side
   2,085.91x = 3,286,348.71
5. Step 5: Solve for x
   x = 3,286,348.71/2,085.91
6. Step 6: Final answer
   x = 1,575.50