Finding the Fourth Proportional to 3,719.27, 5,131.69 and 2,147.36

Step by Step Solution

1. Step 1: Write the proportion equation
   3,719.27 : 5,131.69 = 2,147.36 : x
2. Step 2: Convert to fraction form
   3,719.27/5,131.69 = 2,147.36/x
3. Step 3: Cross multiply
   3,719.27x = 5,131.69 × 2,147.36
4. Step 4: Simplify right side
   3,719.27x = 11,019,585.84
5. Step 5: Solve for x
   x = 11,019,585.84/3,719.27
6. Step 6: Final answer
   x = 2,962.84