Finding the Fourth Proportional to 1,067.42, 1,598.61 and 676.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,067.42 : 1,598.61 = 676.06 : x
2. Step 2: Convert to fraction form
   1,067.42/1,598.61 = 676.06/x
3. Step 3: Cross multiply
   1,067.42x = 1,598.61 × 676.06
4. Step 4: Simplify right side
   1,067.42x = 1,080,756.28
5. Step 5: Solve for x
   x = 1,080,756.28/1,067.42
6. Step 6: Final answer
   x = 1,012.49