Finding the Fourth Proportional to 2,042.50, 2,818.65 and 1,111

Step by Step Solution

1. Step 1: Write the proportion equation
   2,042.50 : 2,818.65 = 1,111 : x
2. Step 2: Convert to fraction form
   2,042.50/2,818.65 = 1,111/x
3. Step 3: Cross multiply
   2,042.50x = 2,818.65 × 1,111
4. Step 4: Simplify right side
   2,042.50x = 3,131,520.15
5. Step 5: Solve for x
   x = 3,131,520.15/2,042.50
6. Step 6: Final answer
   x = 1,533.18