Finding the Fourth Proportional to 3,086.52, 4,627.48 and 1,138.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,086.52 : 4,627.48 = 1,138.72 : x
2. Step 2: Convert to fraction form
   3,086.52/4,627.48 = 1,138.72/x
3. Step 3: Cross multiply
   3,086.52x = 4,627.48 × 1,138.72
4. Step 4: Simplify right side
   3,086.52x = 5,269,404.03
5. Step 5: Solve for x
   x = 5,269,404.03/3,086.52
6. Step 6: Final answer
   x = 1,707.23