Finding the Fourth Proportional to 2,042.60, 2,818.76 and 1,111.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,042.60 : 2,818.76 = 1,111.10 : x
2. Step 2: Convert to fraction form
   2,042.60/2,818.76 = 1,111.10/x
3. Step 3: Cross multiply
   2,042.60x = 2,818.76 × 1,111.10
4. Step 4: Simplify right side
   2,042.60x = 3,131,924.24
5. Step 5: Solve for x
   x = 3,131,924.24/2,042.60
6. Step 6: Final answer
   x = 1,533.30