Finding the Fourth Proportional to 1,049.69, 1,448.72 and 787.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,049.69 : 1,448.72 = 787.25 : x
2. Step 2: Convert to fraction form
   1,049.69/1,448.72 = 787.25/x
3. Step 3: Cross multiply
   1,049.69x = 1,448.72 × 787.25
4. Step 4: Simplify right side
   1,049.69x = 1,140,507.46
5. Step 5: Solve for x
   x = 1,140,507.46/1,049.69
6. Step 6: Final answer
   x = 1,086.52