Finding the Fourth Proportional to 1,281.42, 1,763.78 and 1,094.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,281.42 : 1,763.78 = 1,094.31 : x
2. Step 2: Convert to fraction form
   1,281.42/1,763.78 = 1,094.31/x
3. Step 3: Cross multiply
   1,281.42x = 1,763.78 × 1,094.31
4. Step 4: Simplify right side
   1,281.42x = 1,930,116.62
5. Step 5: Solve for x
   x = 1,930,116.62/1,281.42
6. Step 6: Final answer
   x = 1,506.23