Finding the Fourth Proportional to 1,499.56, 2,069.07 and 910.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.56 : 2,069.07 = 910.28 : x
2. Step 2: Convert to fraction form
   1,499.56/2,069.07 = 910.28/x
3. Step 3: Cross multiply
   1,499.56x = 2,069.07 × 910.28
4. Step 4: Simplify right side
   1,499.56x = 1,883,433.04
5. Step 5: Solve for x
   x = 1,883,433.04/1,499.56
6. Step 6: Final answer
   x = 1,255.99