Finding the Fourth Proportional to 2,042.97, 2,818.33 and 1,380.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,042.97 : 2,818.33 = 1,380.05 : x
2. Step 2: Convert to fraction form
   2,042.97/2,818.33 = 1,380.05/x
3. Step 3: Cross multiply
   2,042.97x = 2,818.33 × 1,380.05
4. Step 4: Simplify right side
   2,042.97x = 3,889,429.34
5. Step 5: Solve for x
   x = 3,889,429.34/2,042.97
6. Step 6: Final answer
   x = 1,903.81