Finding the Fourth Proportional to 2,382.86, 3,286.59 and 1,636.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,382.86 : 3,286.59 = 1,636.94 : x
2. Step 2: Convert to fraction form
   2,382.86/3,286.59 = 1,636.94/x
3. Step 3: Cross multiply
   2,382.86x = 3,286.59 × 1,636.94
4. Step 4: Simplify right side
   2,382.86x = 5,379,950.63
5. Step 5: Solve for x
   x = 5,379,950.63/2,382.86
6. Step 6: Final answer
   x = 2,257.77