Finding the Fourth Proportional to 1,104.78, 1,524.72 and 662.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,104.78 : 1,524.72 = 662.96 : x
2. Step 2: Convert to fraction form
   1,104.78/1,524.72 = 662.96/x
3. Step 3: Cross multiply
   1,104.78x = 1,524.72 × 662.96
4. Step 4: Simplify right side
   1,104.78x = 1,010,828.37
5. Step 5: Solve for x
   x = 1,010,828.37/1,104.78
6. Step 6: Final answer
   x = 914.96