Finding the Fourth Proportional to 1,086.62, 1,627.23 and 760.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.62 : 1,627.23 = 760.46 : x
2. Step 2: Convert to fraction form
   1,086.62/1,627.23 = 760.46/x
3. Step 3: Cross multiply
   1,086.62x = 1,627.23 × 760.46
4. Step 4: Simplify right side
   1,086.62x = 1,237,443.33
5. Step 5: Solve for x
   x = 1,237,443.33/1,086.62
6. Step 6: Final answer
   x = 1,138.80