Finding the Fourth Proportional to 2,151.14, 3,227.48 and 1,056.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,151.14 : 3,227.48 = 1,056.12 : x
2. Step 2: Convert to fraction form
   2,151.14/3,227.48 = 1,056.12/x
3. Step 3: Cross multiply
   2,151.14x = 3,227.48 × 1,056.12
4. Step 4: Simplify right side
   2,151.14x = 3,408,600.90
5. Step 5: Solve for x
   x = 3,408,600.90/2,151.14
6. Step 6: Final answer
   x = 1,584.56