Finding the Fourth Proportional to 1,799.40, 2,483.10 and 1,209

Step by Step Solution

1. Step 1: Write the proportion equation
   1,799.40 : 2,483.10 = 1,209 : x
2. Step 2: Convert to fraction form
   1,799.40/2,483.10 = 1,209/x
3. Step 3: Cross multiply
   1,799.40x = 2,483.10 × 1,209
4. Step 4: Simplify right side
   1,799.40x = 3,002,067.90
5. Step 5: Solve for x
   x = 3,002,067.90/1,799.40
6. Step 6: Final answer
   x = 1,668.37