Finding the Fourth Proportional to 1,281.32, 1,769.52 and 1,103.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,281.32 : 1,769.52 = 1,103.92 : x
2. Step 2: Convert to fraction form
   1,281.32/1,769.52 = 1,103.92/x
3. Step 3: Cross multiply
   1,281.32x = 1,769.52 × 1,103.92
4. Step 4: Simplify right side
   1,281.32x = 1,953,408.52
5. Step 5: Solve for x
   x = 1,953,408.52/1,281.32
6. Step 6: Final answer
   x = 1,524.53