Finding the Fourth Proportional to 1,093.56, 1,510.56 and 810.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,093.56 : 1,510.56 = 810.56 : x
2. Step 2: Convert to fraction form
   1,093.56/1,510.56 = 810.56/x
3. Step 3: Cross multiply
   1,093.56x = 1,510.56 × 810.56
4. Step 4: Simplify right side
   1,093.56x = 1,224,391.96
5. Step 5: Solve for x
   x = 1,224,391.96/1,093.56
6. Step 6: Final answer
   x = 1,119.64