Finding the Fourth Proportional to 1,404.34, 2,105.09 and 674.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.34 : 2,105.09 = 674.93 : x
2. Step 2: Convert to fraction form
   1,404.34/2,105.09 = 674.93/x
3. Step 3: Cross multiply
   1,404.34x = 2,105.09 × 674.93
4. Step 4: Simplify right side
   1,404.34x = 1,420,792.81
5. Step 5: Solve for x
   x = 1,420,792.81/1,404.34
6. Step 6: Final answer
   x = 1,011.72