Finding the Fourth Proportional to 2,010.28, 3,016.72 and 914.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,010.28 : 3,016.72 = 914.70 : x
2. Step 2: Convert to fraction form
   2,010.28/3,016.72 = 914.70/x
3. Step 3: Cross multiply
   2,010.28x = 3,016.72 × 914.70
4. Step 4: Simplify right side
   2,010.28x = 2,759,393.78
5. Step 5: Solve for x
   x = 2,759,393.78/2,010.28
6. Step 6: Final answer
   x = 1,372.64