Finding the Fourth Proportional to 3,719.41, 5,132.78 and 2,147.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,719.41 : 5,132.78 = 2,147.50 : x
2. Step 2: Convert to fraction form
   3,719.41/5,132.78 = 2,147.50/x
3. Step 3: Cross multiply
   3,719.41x = 5,132.78 × 2,147.50
4. Step 4: Simplify right side
   3,719.41x = 11,022,645.05
5. Step 5: Solve for x
   x = 11,022,645.05/3,719.41
6. Step 6: Final answer
   x = 2,963.55