Finding the Fourth Proportional to 2,310.89, 3,185.82 and 1,563.66

Step by Step Solution

1. Step 1: Write the proportion equation
   2,310.89 : 3,185.82 = 1,563.66 : x
2. Step 2: Convert to fraction form
   2,310.89/3,185.82 = 1,563.66/x
3. Step 3: Cross multiply
   2,310.89x = 3,185.82 × 1,563.66
4. Step 4: Simplify right side
   2,310.89x = 4,981,539.30
5. Step 5: Solve for x
   x = 4,981,539.30/2,310.89
6. Step 6: Final answer
   x = 2,155.68