Finding the Fourth Proportional to 1,334.16, 1,998.32 and 1,100.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,334.16 : 1,998.32 = 1,100.42 : x
2. Step 2: Convert to fraction form
   1,334.16/1,998.32 = 1,100.42/x
3. Step 3: Cross multiply
   1,334.16x = 1,998.32 × 1,100.42
4. Step 4: Simplify right side
   1,334.16x = 2,198,975.80
5. Step 5: Solve for x
   x = 2,198,975.80/1,334.16
6. Step 6: Final answer
   x = 1,648.21