Finding the Fourth Proportional to 2,188.52, 3,019.38 and 1,256.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188.52 : 3,019.38 = 1,256.48 : x
2. Step 2: Convert to fraction form
   2,188.52/3,019.38 = 1,256.48/x
3. Step 3: Cross multiply
   2,188.52x = 3,019.38 × 1,256.48
4. Step 4: Simplify right side
   2,188.52x = 3,793,790.58
5. Step 5: Solve for x
   x = 3,793,790.58/2,188.52
6. Step 6: Final answer
   x = 1,733.50