Finding the Fourth Proportional to 1,100.72, 1,651.75 and 998.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.72 : 1,651.75 = 998.18 : x
2. Step 2: Convert to fraction form
   1,100.72/1,651.75 = 998.18/x
3. Step 3: Cross multiply
   1,100.72x = 1,651.75 × 998.18
4. Step 4: Simplify right side
   1,100.72x = 1,648,743.82
5. Step 5: Solve for x
   x = 1,648,743.82/1,100.72
6. Step 6: Final answer
   x = 1,497.88