Finding the Fourth Proportional to 1,416.27, 1,954.42 and 786.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,416.27 : 1,954.42 = 786.79 : x
2. Step 2: Convert to fraction form
   1,416.27/1,954.42 = 786.79/x
3. Step 3: Cross multiply
   1,416.27x = 1,954.42 × 786.79
4. Step 4: Simplify right side
   1,416.27x = 1,537,711.98
5. Step 5: Solve for x
   x = 1,537,711.98/1,416.27
6. Step 6: Final answer
   x = 1,085.75