Finding the Fourth Proportional to 2,724.42, 4,086.03 and 875.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,724.42 : 4,086.03 = 875.18 : x
2. Step 2: Convert to fraction form
   2,724.42/4,086.03 = 875.18/x
3. Step 3: Cross multiply
   2,724.42x = 4,086.03 × 875.18
4. Step 4: Simplify right side
   2,724.42x = 3,576,011.74
5. Step 5: Solve for x
   x = 3,576,011.74/2,724.42
6. Step 6: Final answer
   x = 1,312.58