Finding the Fourth Proportional to 1,086.53, 1,626.06 and 844.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.53 : 1,626.06 = 844.16 : x
2. Step 2: Convert to fraction form
   1,086.53/1,626.06 = 844.16/x
3. Step 3: Cross multiply
   1,086.53x = 1,626.06 × 844.16
4. Step 4: Simplify right side
   1,086.53x = 1,372,654.81
5. Step 5: Solve for x
   x = 1,372,654.81/1,086.53
6. Step 6: Final answer
   x = 1,263.34