Finding the Fourth Proportional to 2,724.09, 4,085.91 and 874.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,724.09 : 4,085.91 = 874.71 : x
2. Step 2: Convert to fraction form
   2,724.09/4,085.91 = 874.71/x
3. Step 3: Cross multiply
   2,724.09x = 4,085.91 × 874.71
4. Step 4: Simplify right side
   2,724.09x = 3,573,986.34
5. Step 5: Solve for x
   x = 3,573,986.34/2,724.09
6. Step 6: Final answer
   x = 1,311.99