Finding the Fourth Proportional to 2,976.21, 4,103.27 and 2,561.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,976.21 : 4,103.27 = 2,561.02 : x
2. Step 2: Convert to fraction form
   2,976.21/4,103.27 = 2,561.02/x
3. Step 3: Cross multiply
   2,976.21x = 4,103.27 × 2,561.02
4. Step 4: Simplify right side
   2,976.21x = 10,508,557.48
5. Step 5: Solve for x
   x = 10,508,557.48/2,976.21
6. Step 6: Final answer
   x = 3,530.85