Finding the Fourth Proportional to 2,382.71, 3,288.20 and 1,320.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,382.71 : 3,288.20 = 1,320.53 : x
2. Step 2: Convert to fraction form
   2,382.71/3,288.20 = 1,320.53/x
3. Step 3: Cross multiply
   2,382.71x = 3,288.20 × 1,320.53
4. Step 4: Simplify right side
   2,382.71x = 4,342,143.70
5. Step 5: Solve for x
   x = 4,342,143.70/2,382.71
6. Step 6: Final answer
   x = 1,822.36