Finding the Fourth Proportional to 2,144.48, 3,191.60 and 2,065.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144.48 : 3,191.60 = 2,065.50 : x
2. Step 2: Convert to fraction form
   2,144.48/3,191.60 = 2,065.50/x
3. Step 3: Cross multiply
   2,144.48x = 3,191.60 × 2,065.50
4. Step 4: Simplify right side
   2,144.48x = 6,592,254.96
5. Step 5: Solve for x
   x = 6,592,254.96/2,144.48
6. Step 6: Final answer
   x = 3,074.06