Finding the Fourth Proportional to 1,010.76, 1,514.52 and 913.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,010.76 : 1,514.52 = 913.56 : x
2. Step 2: Convert to fraction form
   1,010.76/1,514.52 = 913.56/x
3. Step 3: Cross multiply
   1,010.76x = 1,514.52 × 913.56
4. Step 4: Simplify right side
   1,010.76x = 1,383,604.89
5. Step 5: Solve for x
   x = 1,383,604.89/1,010.76
6. Step 6: Final answer
   x = 1,368.88