Finding the Fourth Proportional to 2,382.69, 3,574.71 and 1,287.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,382.69 : 3,574.71 = 1,287.84 : x
2. Step 2: Convert to fraction form
   2,382.69/3,574.71 = 1,287.84/x
3. Step 3: Cross multiply
   2,382.69x = 3,574.71 × 1,287.84
4. Step 4: Simplify right side
   2,382.69x = 4,603,654.53
5. Step 5: Solve for x
   x = 4,603,654.53/2,382.69
6. Step 6: Final answer
   x = 1,932.12