Finding the Fourth Proportional to 2,147.52, 3,224 and 1,786.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147.52 : 3,224 = 1,786.72 : x
2. Step 2: Convert to fraction form
   2,147.52/3,224 = 1,786.72/x
3. Step 3: Cross multiply
   2,147.52x = 3,224 × 1,786.72
4. Step 4: Simplify right side
   2,147.52x = 5,760,385.28
5. Step 5: Solve for x
   x = 5,760,385.28/2,147.52
6. Step 6: Final answer
   x = 2,682.34