Finding the Fourth Proportional to 2,079.54, 3,118.80 and 1,200.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,079.54 : 3,118.80 = 1,200.18 : x
2. Step 2: Convert to fraction form
   2,079.54/3,118.80 = 1,200.18/x
3. Step 3: Cross multiply
   2,079.54x = 3,118.80 × 1,200.18
4. Step 4: Simplify right side
   2,079.54x = 3,743,121.38
5. Step 5: Solve for x
   x = 3,743,121.38/2,079.54
6. Step 6: Final answer
   x = 1,799.98