Finding the Fourth Proportional to 1,105.18, 1,524.60 and 662.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.18 : 1,524.60 = 662.98 : x
2. Step 2: Convert to fraction form
   1,105.18/1,524.60 = 662.98/x
3. Step 3: Cross multiply
   1,105.18x = 1,524.60 × 662.98
4. Step 4: Simplify right side
   1,105.18x = 1,010,779.31
5. Step 5: Solve for x
   x = 1,010,779.31/1,105.18
6. Step 6: Final answer
   x = 914.58