Finding the Fourth Proportional to 2,725.38, 4,086.18 and 1,427.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,725.38 : 4,086.18 = 1,427.76 : x
2. Step 2: Convert to fraction form
   2,725.38/4,086.18 = 1,427.76/x
3. Step 3: Cross multiply
   2,725.38x = 4,086.18 × 1,427.76
4. Step 4: Simplify right side
   2,725.38x = 5,834,084.36
5. Step 5: Solve for x
   x = 5,834,084.36/2,725.38
6. Step 6: Final answer
   x = 2,140.65