Finding the Fourth Proportional to 1,404.59, 2,103.69 and 674.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.59 : 2,103.69 = 674.69 : x
2. Step 2: Convert to fraction form
   1,404.59/2,103.69 = 674.69/x
3. Step 3: Cross multiply
   1,404.59x = 2,103.69 × 674.69
4. Step 4: Simplify right side
   1,404.59x = 1,419,338.61
5. Step 5: Solve for x
   x = 1,419,338.61/1,404.59
6. Step 6: Final answer
   x = 1,010.50