Finding the Fourth Proportional to 2,043.12, 2,819.52 and 1,111.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,043.12 : 2,819.52 = 1,111.64 : x
2. Step 2: Convert to fraction form
   2,043.12/2,819.52 = 1,111.64/x
3. Step 3: Cross multiply
   2,043.12x = 2,819.52 × 1,111.64
4. Step 4: Simplify right side
   2,043.12x = 3,134,291.21
5. Step 5: Solve for x
   x = 3,134,291.21/2,043.12
6. Step 6: Final answer
   x = 1,534.07