Finding the Fourth Proportional to 1,417.24, 1,955.65 and 787.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,417.24 : 1,955.65 = 787.73 : x
2. Step 2: Convert to fraction form
   1,417.24/1,955.65 = 787.73/x
3. Step 3: Cross multiply
   1,417.24x = 1,955.65 × 787.73
4. Step 4: Simplify right side
   1,417.24x = 1,540,527.09
5. Step 5: Solve for x
   x = 1,540,527.09/1,417.24
6. Step 6: Final answer
   x = 1,086.99