Finding the Fourth Proportional to 1,510.56, 2,266.07 and 817.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,510.56 : 2,266.07 = 817.32 : x
2. Step 2: Convert to fraction form
   1,510.56/2,266.07 = 817.32/x
3. Step 3: Cross multiply
   1,510.56x = 2,266.07 × 817.32
4. Step 4: Simplify right side
   1,510.56x = 1,852,111.04
5. Step 5: Solve for x
   x = 1,852,111.04/1,510.56
6. Step 6: Final answer
   x = 1,226.11