Finding the Fourth Proportional to 1,191.78, 1,648.17 and 1,044.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,191.78 : 1,648.17 = 1,044.18 : x
2. Step 2: Convert to fraction form
   1,191.78/1,648.17 = 1,044.18/x
3. Step 3: Cross multiply
   1,191.78x = 1,648.17 × 1,044.18
4. Step 4: Simplify right side
   1,191.78x = 1,720,986.15
5. Step 5: Solve for x
   x = 1,720,986.15/1,191.78
6. Step 6: Final answer
   x = 1,444.05