Finding the Fourth Proportional to 3,561.48, 4,914.59 and 2,144.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,561.48 : 4,914.59 = 2,144.88 : x
2. Step 2: Convert to fraction form
   3,561.48/4,914.59 = 2,144.88/x
3. Step 3: Cross multiply
   3,561.48x = 4,914.59 × 2,144.88
4. Step 4: Simplify right side
   3,561.48x = 10,541,195.07
5. Step 5: Solve for x
   x = 10,541,195.07/3,561.48
6. Step 6: Final answer
   x = 2,959.78