Finding the Fourth Proportional to 2,866.24, 3,975.52 and 2,749.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,866.24 : 3,975.52 = 2,749.60 : x
2. Step 2: Convert to fraction form
   2,866.24/3,975.52 = 2,749.60/x
3. Step 3: Cross multiply
   2,866.24x = 3,975.52 × 2,749.60
4. Step 4: Simplify right side
   2,866.24x = 10,931,089.79
5. Step 5: Solve for x
   x = 10,931,089.79/2,866.24
6. Step 6: Final answer
   x = 3,813.74