Finding the Fourth Proportional to 1,417.33, 1,955.88 and 787.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,417.33 : 1,955.88 = 787.84 : x
2. Step 2: Convert to fraction form
   1,417.33/1,955.88 = 787.84/x
3. Step 3: Cross multiply
   1,417.33x = 1,955.88 × 787.84
4. Step 4: Simplify right side
   1,417.33x = 1,540,923.42
5. Step 5: Solve for x
   x = 1,540,923.42/1,417.33
6. Step 6: Final answer
   x = 1,087.20