Finding the Fourth Proportional to 2,553.71, 3,826.85 and 1,382.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,553.71 : 3,826.85 = 1,382.72 : x
2. Step 2: Convert to fraction form
   2,553.71/3,826.85 = 1,382.72/x
3. Step 3: Cross multiply
   2,553.71x = 3,826.85 × 1,382.72
4. Step 4: Simplify right side
   2,553.71x = 5,291,465.49
5. Step 5: Solve for x
   x = 5,291,465.49/2,553.71
6. Step 6: Final answer
   x = 2,072.07