Finding the Fourth Proportional to 2,043.89, 2,820.57 and 1,112.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,043.89 : 2,820.57 = 1,112.39 : x
2. Step 2: Convert to fraction form
   2,043.89/2,820.57 = 1,112.39/x
3. Step 3: Cross multiply
   2,043.89x = 2,820.57 × 1,112.39
4. Step 4: Simplify right side
   2,043.89x = 3,137,573.86
5. Step 5: Solve for x
   x = 3,137,573.86/2,043.89
6. Step 6: Final answer
   x = 1,535.10