Finding the Fourth Proportional to 2,662.39, 3,995.12 and 1,102.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,662.39 : 3,995.12 = 1,102.11 : x
2. Step 2: Convert to fraction form
   2,662.39/3,995.12 = 1,102.11/x
3. Step 3: Cross multiply
   2,662.39x = 3,995.12 × 1,102.11
4. Step 4: Simplify right side
   2,662.39x = 4,403,061.70
5. Step 5: Solve for x
   x = 4,403,061.70/2,662.39
6. Step 6: Final answer
   x = 1,653.80