Finding the Fourth Proportional to 3,791.46, 5,231.59 and 2,112.49

Step by Step Solution

1. Step 1: Write the proportion equation
   3,791.46 : 5,231.59 = 2,112.49 : x
2. Step 2: Convert to fraction form
   3,791.46/5,231.59 = 2,112.49/x
3. Step 3: Cross multiply
   3,791.46x = 5,231.59 × 2,112.49
4. Step 4: Simplify right side
   3,791.46x = 11,051,681.56
5. Step 5: Solve for x
   x = 11,051,681.56/3,791.46
6. Step 6: Final answer
   x = 2,914.89