Finding the Fourth Proportional to 1,383.18, 1,902.24 and 1,100.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383.18 : 1,902.24 = 1,100.08 : x
2. Step 2: Convert to fraction form
   1,383.18/1,902.24 = 1,100.08/x
3. Step 3: Cross multiply
   1,383.18x = 1,902.24 × 1,100.08
4. Step 4: Simplify right side
   1,383.18x = 2,092,618.93
5. Step 5: Solve for x
   x = 2,092,618.93/1,383.18
6. Step 6: Final answer
   x = 1,512.91