Finding the Fourth Proportional to 3,561.54, 4,914.97 and 2,164.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,561.54 : 4,914.97 = 2,164.42 : x
2. Step 2: Convert to fraction form
   3,561.54/4,914.97 = 2,164.42/x
3. Step 3: Cross multiply
   3,561.54x = 4,914.97 × 2,164.42
4. Step 4: Simplify right side
   3,561.54x = 10,638,059.37
5. Step 5: Solve for x
   x = 10,638,059.37/3,561.54
6. Step 6: Final answer
   x = 2,986.93