Finding the Fourth Proportional to 1,105.06, 1,524.47 and 662.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.06 : 1,524.47 = 662.19 : x
2. Step 2: Convert to fraction form
   1,105.06/1,524.47 = 662.19/x
3. Step 3: Cross multiply
   1,105.06x = 1,524.47 × 662.19
4. Step 4: Simplify right side
   1,105.06x = 1,009,492.06
5. Step 5: Solve for x
   x = 1,009,492.06/1,105.06
6. Step 6: Final answer
   x = 913.52