Finding the Fourth Proportional to 1,281.82, 1,770.21 and 1,104.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,281.82 : 1,770.21 = 1,104.42 : x
2. Step 2: Convert to fraction form
   1,281.82/1,770.21 = 1,104.42/x
3. Step 3: Cross multiply
   1,281.82x = 1,770.21 × 1,104.42
4. Step 4: Simplify right side
   1,281.82x = 1,955,055.33
5. Step 5: Solve for x
   x = 1,955,055.33/1,281.82
6. Step 6: Final answer
   x = 1,525.22