Finding the Fourth Proportional to 2,085.59, 2,878.11 and 1,141.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,085.59 : 2,878.11 = 1,141.47 : x
2. Step 2: Convert to fraction form
   2,085.59/2,878.11 = 1,141.47/x
3. Step 3: Cross multiply
   2,085.59x = 2,878.11 × 1,141.47
4. Step 4: Simplify right side
   2,085.59x = 3,285,276.22
5. Step 5: Solve for x
   x = 3,285,276.22/2,085.59
6. Step 6: Final answer
   x = 1,575.22