Finding the Fourth Proportional to 1,103.67, 1,656.59 and 1,098.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.67 : 1,656.59 = 1,098.54 : x
2. Step 2: Convert to fraction form
   1,103.67/1,656.59 = 1,098.54/x
3. Step 3: Cross multiply
   1,103.67x = 1,656.59 × 1,098.54
4. Step 4: Simplify right side
   1,103.67x = 1,819,824.89
5. Step 5: Solve for x
   x = 1,819,824.89/1,103.67
6. Step 6: Final answer
   x = 1,648.88