Finding the Fourth Proportional to 1,215.27, 1,677.39 and 749.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,215.27 : 1,677.39 = 749.25 : x
2. Step 2: Convert to fraction form
   1,215.27/1,677.39 = 749.25/x
3. Step 3: Cross multiply
   1,215.27x = 1,677.39 × 749.25
4. Step 4: Simplify right side
   1,215.27x = 1,256,784.46
5. Step 5: Solve for x
   x = 1,256,784.46/1,215.27
6. Step 6: Final answer
   x = 1,034.16