Finding the Fourth Proportional to 2,131.55, 3,208.55 and 1,944.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.55 : 3,208.55 = 1,944.71 : x
2. Step 2: Convert to fraction form
   2,131.55/3,208.55 = 1,944.71/x
3. Step 3: Cross multiply
   2,131.55x = 3,208.55 × 1,944.71
4. Step 4: Simplify right side
   2,131.55x = 6,239,673.50
5. Step 5: Solve for x
   x = 6,239,673.50/2,131.55
6. Step 6: Final answer
   x = 2,927.30