Finding the Fourth Proportional to 1,086.44, 1,627.69 and 914.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.44 : 1,627.69 = 914.18 : x
2. Step 2: Convert to fraction form
   1,086.44/1,627.69 = 914.18/x
3. Step 3: Cross multiply
   1,086.44x = 1,627.69 × 914.18
4. Step 4: Simplify right side
   1,086.44x = 1,488,001.64
5. Step 5: Solve for x
   x = 1,488,001.64/1,086.44
6. Step 6: Final answer
   x = 1,369.61