Finding the Fourth Proportional to 1,194.24, 1,788.72 and 918.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,194.24 : 1,788.72 = 918.30 : x
2. Step 2: Convert to fraction form
   1,194.24/1,788.72 = 918.30/x
3. Step 3: Cross multiply
   1,194.24x = 1,788.72 × 918.30
4. Step 4: Simplify right side
   1,194.24x = 1,642,581.58
5. Step 5: Solve for x
   x = 1,642,581.58/1,194.24
6. Step 6: Final answer
   x = 1,375.42