Finding the Fourth Proportional to 2,042.81, 2,819.03 and 1,111.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,042.81 : 2,819.03 = 1,111.31 : x
2. Step 2: Convert to fraction form
   2,042.81/2,819.03 = 1,111.31/x
3. Step 3: Cross multiply
   2,042.81x = 2,819.03 × 1,111.31
4. Step 4: Simplify right side
   2,042.81x = 3,132,796.58
5. Step 5: Solve for x
   x = 3,132,796.58/2,042.81
6. Step 6: Final answer
   x = 1,533.58