Finding the Fourth Proportional to 2,610.03, 3,922.35 and 2,143.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,610.03 : 3,922.35 = 2,143.47 : x
2. Step 2: Convert to fraction form
   2,610.03/3,922.35 = 2,143.47/x
3. Step 3: Cross multiply
   2,610.03x = 3,922.35 × 2,143.47
4. Step 4: Simplify right side
   2,610.03x = 8,407,439.55
5. Step 5: Solve for x
   x = 8,407,439.55/2,610.03
6. Step 6: Final answer
   x = 3,221.20