Finding the Fourth Proportional to 1,103.38, 1,647.47 and 898.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.38 : 1,647.47 = 898.33 : x
2. Step 2: Convert to fraction form
   1,103.38/1,647.47 = 898.33/x
3. Step 3: Cross multiply
   1,103.38x = 1,647.47 × 898.33
4. Step 4: Simplify right side
   1,103.38x = 1,479,971.73
5. Step 5: Solve for x
   x = 1,479,971.73/1,103.38
6. Step 6: Final answer
   x = 1,341.31