Finding the Fourth Proportional to 1,066.15, 1,471.22 and 587.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.15 : 1,471.22 = 587.59 : x
2. Step 2: Convert to fraction form
   1,066.15/1,471.22 = 587.59/x
3. Step 3: Cross multiply
   1,066.15x = 1,471.22 × 587.59
4. Step 4: Simplify right side
   1,066.15x = 864,468.28
5. Step 5: Solve for x
   x = 864,468.28/1,066.15
6. Step 6: Final answer
   x = 810.83