Finding the Fourth Proportional to 1,044.18, 1,441.89 and 765.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,044.18 : 1,441.89 = 765.99 : x
2. Step 2: Convert to fraction form
   1,044.18/1,441.89 = 765.99/x
3. Step 3: Cross multiply
   1,044.18x = 1,441.89 × 765.99
4. Step 4: Simplify right side
   1,044.18x = 1,104,473.32
5. Step 5: Solve for x
   x = 1,104,473.32/1,044.18
6. Step 6: Final answer
   x = 1,057.74