Finding the Fourth Proportional to 1,320.42, 1,984.22 and 704.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,320.42 : 1,984.22 = 704.56 : x
2. Step 2: Convert to fraction form
   1,320.42/1,984.22 = 704.56/x
3. Step 3: Cross multiply
   1,320.42x = 1,984.22 × 704.56
4. Step 4: Simplify right side
   1,320.42x = 1,398,002.04
5. Step 5: Solve for x
   x = 1,398,002.04/1,320.42
6. Step 6: Final answer
   x = 1,058.76