Finding the Fourth Proportional to 1,417.46, 1,956.07 and 787.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,417.46 : 1,956.07 = 787.99 : x
2. Step 2: Convert to fraction form
   1,417.46/1,956.07 = 787.99/x
3. Step 3: Cross multiply
   1,417.46x = 1,956.07 × 787.99
4. Step 4: Simplify right side
   1,417.46x = 1,541,349.88
5. Step 5: Solve for x
   x = 1,541,349.88/1,417.46
6. Step 6: Final answer
   x = 1,087.40