Finding the Fourth Proportional to 3,719.42, 5,132.61 and 2,147.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,719.42 : 5,132.61 = 2,147.42 : x
2. Step 2: Convert to fraction form
   3,719.42/5,132.61 = 2,147.42/x
3. Step 3: Cross multiply
   3,719.42x = 5,132.61 × 2,147.42
4. Step 4: Simplify right side
   3,719.42x = 11,021,869.37
5. Step 5: Solve for x
   x = 11,021,869.37/3,719.42
6. Step 6: Final answer
   x = 2,963.33