Finding the Fourth Proportional to 2,047.72, 2,825.54 and 1,151.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,047.72 : 2,825.54 = 1,151.28 : x
2. Step 2: Convert to fraction form
   2,047.72/2,825.54 = 1,151.28/x
3. Step 3: Cross multiply
   2,047.72x = 2,825.54 × 1,151.28
4. Step 4: Simplify right side
   2,047.72x = 3,252,987.69
5. Step 5: Solve for x
   x = 3,252,987.69/2,047.72
6. Step 6: Final answer
   x = 1,588.59