Finding the Fourth Proportional to 1,104.84, 1,654.83 and 818.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,104.84 : 1,654.83 = 818.10 : x
2. Step 2: Convert to fraction form
   1,104.84/1,654.83 = 818.10/x
3. Step 3: Cross multiply
   1,104.84x = 1,654.83 × 818.10
4. Step 4: Simplify right side
   1,104.84x = 1,353,816.42
5. Step 5: Solve for x
   x = 1,353,816.42/1,104.84
6. Step 6: Final answer
   x = 1,225.35