Finding the Fourth Proportional to 1,404.46, 2,104.36 and 854.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.46 : 2,104.36 = 854.98 : x
2. Step 2: Convert to fraction form
   1,404.46/2,104.36 = 854.98/x
3. Step 3: Cross multiply
   1,404.46x = 2,104.36 × 854.98
4. Step 4: Simplify right side
   1,404.46x = 1,799,185.71
5. Step 5: Solve for x
   x = 1,799,185.71/1,404.46
6. Step 6: Final answer
   x = 1,281.05