Finding the Fourth Proportional to 2,111.67, 3,166.29 and 1,563.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.67 : 3,166.29 = 1,563.71 : x
2. Step 2: Convert to fraction form
   2,111.67/3,166.29 = 1,563.71/x
3. Step 3: Cross multiply
   2,111.67x = 3,166.29 × 1,563.71
4. Step 4: Simplify right side
   2,111.67x = 4,951,143.50
5. Step 5: Solve for x
   x = 4,951,143.50/2,111.67
6. Step 6: Final answer
   x = 2,344.66