Finding the Fourth Proportional to 1,081.37, 1,619.62 and 758.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,081.37 : 1,619.62 = 758.18 : x
2. Step 2: Convert to fraction form
   1,081.37/1,619.62 = 758.18/x
3. Step 3: Cross multiply
   1,081.37x = 1,619.62 × 758.18
4. Step 4: Simplify right side
   1,081.37x = 1,227,963.49
5. Step 5: Solve for x
   x = 1,227,963.49/1,081.37
6. Step 6: Final answer
   x = 1,135.56