Finding the Fourth Proportional to 1,215.12, 1,676.52 and 749.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,215.12 : 1,676.52 = 749.52 : x
2. Step 2: Convert to fraction form
   1,215.12/1,676.52 = 749.52/x
3. Step 3: Cross multiply
   1,215.12x = 1,676.52 × 749.52
4. Step 4: Simplify right side
   1,215.12x = 1,256,585.27
5. Step 5: Solve for x
   x = 1,256,585.27/1,215.12
6. Step 6: Final answer
   x = 1,034.12