Finding the Fourth Proportional to 2,725.42, 4,087.53 and 876.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,725.42 : 4,087.53 = 876.18 : x
2. Step 2: Convert to fraction form
   2,725.42/4,087.53 = 876.18/x
3. Step 3: Cross multiply
   2,725.42x = 4,087.53 × 876.18
4. Step 4: Simplify right side
   2,725.42x = 3,581,412.04
5. Step 5: Solve for x
   x = 3,581,412.04/2,725.42
6. Step 6: Final answer
   x = 1,314.08