Finding the Fourth Proportional to 1,404.34, 2,103.30 and 674.44

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.34 : 2,103.30 = 674.44 : x
2. Step 2: Convert to fraction form
   1,404.34/2,103.30 = 674.44/x
3. Step 3: Cross multiply
   1,404.34x = 2,103.30 × 674.44
4. Step 4: Simplify right side
   1,404.34x = 1,418,549.65
5. Step 5: Solve for x
   x = 1,418,549.65/1,404.34
6. Step 6: Final answer
   x = 1,010.12