Finding the Fourth Proportional to 2,006.32, 3,010.80 and 910.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,006.32 : 3,010.80 = 910.72 : x
2. Step 2: Convert to fraction form
   2,006.32/3,010.80 = 910.72/x
3. Step 3: Cross multiply
   2,006.32x = 3,010.80 × 910.72
4. Step 4: Simplify right side
   2,006.32x = 2,741,995.78
5. Step 5: Solve for x
   x = 2,741,995.78/2,006.32
6. Step 6: Final answer
   x = 1,366.68