Finding the Fourth Proportional to 1,044.27, 1,567.72 and 891.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,044.27 : 1,567.72 = 891.18 : x
2. Step 2: Convert to fraction form
   1,044.27/1,567.72 = 891.18/x
3. Step 3: Cross multiply
   1,044.27x = 1,567.72 × 891.18
4. Step 4: Simplify right side
   1,044.27x = 1,397,120.71
5. Step 5: Solve for x
   x = 1,397,120.71/1,044.27
6. Step 6: Final answer
   x = 1,337.89