Finding the Fourth Proportional to 1,099.08, 1,647.56 and 368.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,099.08 : 1,647.56 = 368.12 : x
2. Step 2: Convert to fraction form
   1,099.08/1,647.56 = 368.12/x
3. Step 3: Cross multiply
   1,099.08x = 1,647.56 × 368.12
4. Step 4: Simplify right side
   1,099.08x = 606,499.79
5. Step 5: Solve for x
   x = 606,499.79/1,099.08
6. Step 6: Final answer
   x = 551.82