Finding the Fourth Proportional to 1,559.73, 2,153.81 and 1,062.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,559.73 : 2,153.81 = 1,062.21 : x
2. Step 2: Convert to fraction form
   1,559.73/2,153.81 = 1,062.21/x
3. Step 3: Cross multiply
   1,559.73x = 2,153.81 × 1,062.21
4. Step 4: Simplify right side
   1,559.73x = 2,287,798.52
5. Step 5: Solve for x
   x = 2,287,798.52/1,559.73
6. Step 6: Final answer
   x = 1,466.79