Finding the Fourth Proportional to 1,524.56, 2,103.72 and 1,291.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,524.56 : 2,103.72 = 1,291.28 : x
2. Step 2: Convert to fraction form
   1,524.56/2,103.72 = 1,291.28/x
3. Step 3: Cross multiply
   1,524.56x = 2,103.72 × 1,291.28
4. Step 4: Simplify right side
   1,524.56x = 2,716,491.56
5. Step 5: Solve for x
   x = 2,716,491.56/1,524.56
6. Step 6: Final answer
   x = 1,781.82