Finding the Fourth Proportional to 2,377.28, 3,280.59 and 1,382.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,377.28 : 3,280.59 = 1,382.87 : x
2. Step 2: Convert to fraction form
   2,377.28/3,280.59 = 1,382.87/x
3. Step 3: Cross multiply
   2,377.28x = 3,280.59 × 1,382.87
4. Step 4: Simplify right side
   2,377.28x = 4,536,629.49
5. Step 5: Solve for x
   x = 4,536,629.49/2,377.28
6. Step 6: Final answer
   x = 1,908.33