Finding the Fourth Proportional to 2,147.72, 2,963.32 and 1,361.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147.72 : 2,963.32 = 1,361.48 : x
2. Step 2: Convert to fraction form
   2,147.72/2,963.32 = 1,361.48/x
3. Step 3: Cross multiply
   2,147.72x = 2,963.32 × 1,361.48
4. Step 4: Simplify right side
   2,147.72x = 4,034,500.91
5. Step 5: Solve for x
   x = 4,034,500.91/2,147.72
6. Step 6: Final answer
   x = 1,878.50