Finding the Fourth Proportional to 7,111.24, 10,666.74 and 2,180.86

Step by Step Solution

1. Step 1: Write the proportion equation
   7,111.24 : 10,666.74 = 2,180.86 : x
2. Step 2: Convert to fraction form
   7,111.24/10,666.74 = 2,180.86/x
3. Step 3: Cross multiply
   7,111.24x = 10,666.74 × 2,180.86
4. Step 4: Simplify right side
   7,111.24x = 23,262,666.60
5. Step 5: Solve for x
   x = 23,262,666.60/7,111.24
6. Step 6: Final answer
   x = 3,271.25