Finding the Fourth Proportional to 2,085.94, 2,878.57 and 1,141.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,085.94 : 2,878.57 = 1,141.72 : x
2. Step 2: Convert to fraction form
   2,085.94/2,878.57 = 1,141.72/x
3. Step 3: Cross multiply
   2,085.94x = 2,878.57 × 1,141.72
4. Step 4: Simplify right side
   2,085.94x = 3,286,516.29
5. Step 5: Solve for x
   x = 3,286,516.29/2,085.94
6. Step 6: Final answer
   x = 1,575.56