Finding the Fourth Proportional to 1,081.34, 1,490.55 and 950.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,081.34 : 1,490.55 = 950.12 : x
2. Step 2: Convert to fraction form
   1,081.34/1,490.55 = 950.12/x
3. Step 3: Cross multiply
   1,081.34x = 1,490.55 × 950.12
4. Step 4: Simplify right side
   1,081.34x = 1,416,201.37
5. Step 5: Solve for x
   x = 1,416,201.37/1,081.34
6. Step 6: Final answer
   x = 1,309.67