Finding the Fourth Proportional to 1,488.38, 2,053.05 and 1,383.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.38 : 2,053.05 = 1,383.58 : x
2. Step 2: Convert to fraction form
   1,488.38/2,053.05 = 1,383.58/x
3. Step 3: Cross multiply
   1,488.38x = 2,053.05 × 1,383.58
4. Step 4: Simplify right side
   1,488.38x = 2,840,556.30
5. Step 5: Solve for x
   x = 2,840,556.30/1,488.38
6. Step 6: Final answer
   x = 1,908.50