Finding the Fourth Proportional to 2,042.30, 2,818.38 and 1,203.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,042.30 : 2,818.38 = 1,203.03 : x
2. Step 2: Convert to fraction form
   2,042.30/2,818.38 = 1,203.03/x
3. Step 3: Cross multiply
   2,042.30x = 2,818.38 × 1,203.03
4. Step 4: Simplify right side
   2,042.30x = 3,390,595.69
5. Step 5: Solve for x
   x = 3,390,595.69/2,042.30
6. Step 6: Final answer
   x = 1,660.19