Finding the Fourth Proportional to 3,719.09, 5,132.29 and 2,147.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,719.09 : 5,132.29 = 2,147.15 : x
2. Step 2: Convert to fraction form
   3,719.09/5,132.29 = 2,147.15/x
3. Step 3: Cross multiply
   3,719.09x = 5,132.29 × 2,147.15
4. Step 4: Simplify right side
   3,719.09x = 11,019,796.47
5. Step 5: Solve for x
   x = 11,019,796.47/3,719.09
6. Step 6: Final answer
   x = 2,963.04