Finding the Fourth Proportional to 1,361.44, 1,879.50 and 1,066.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,361.44 : 1,879.50 = 1,066.20 : x
2. Step 2: Convert to fraction form
   1,361.44/1,879.50 = 1,066.20/x
3. Step 3: Cross multiply
   1,361.44x = 1,879.50 × 1,066.20
4. Step 4: Simplify right side
   1,361.44x = 2,003,919.85
5. Step 5: Solve for x
   x = 2,003,919.85/1,361.44
6. Step 6: Final answer
   x = 1,471.91