Finding the Fourth Proportional to 3,777.35, 5,667.64 and 2,131.43

Step by Step Solution

1. Step 1: Write the proportion equation
   3,777.35 : 5,667.64 = 2,131.43 : x
2. Step 2: Convert to fraction form
   3,777.35/5,667.64 = 2,131.43/x
3. Step 3: Cross multiply
   3,777.35x = 5,667.64 × 2,131.43
4. Step 4: Simplify right side
   3,777.35x = 12,080,144.26
5. Step 5: Solve for x
   x = 12,080,144.26/3,777.35
6. Step 6: Final answer
   x = 3,198.05