Finding the Fourth Proportional to 1,418.04, 1,956.78 and 788.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,418.04 : 1,956.78 = 788.49 : x
2. Step 2: Convert to fraction form
   1,418.04/1,956.78 = 788.49/x
3. Step 3: Cross multiply
   1,418.04x = 1,956.78 × 788.49
4. Step 4: Simplify right side
   1,418.04x = 1,542,901.46
5. Step 5: Solve for x
   x = 1,542,901.46/1,418.04
6. Step 6: Final answer
   x = 1,088.05