Finding the Fourth Proportional to 3,367.42, 5,047.89 and 2,131.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,367.42 : 5,047.89 = 2,131.06 : x
2. Step 2: Convert to fraction form
   3,367.42/5,047.89 = 2,131.06/x
3. Step 3: Cross multiply
   3,367.42x = 5,047.89 × 2,131.06
4. Step 4: Simplify right side
   3,367.42x = 10,757,356.46
5. Step 5: Solve for x
   x = 10,757,356.46/3,367.42
6. Step 6: Final answer
   x = 3,194.54