Finding the Fourth Proportional to 2,043.21, 2,819.61 and 1,111.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,043.21 : 2,819.61 = 1,111.71 : x
2. Step 2: Convert to fraction form
   2,043.21/2,819.61 = 1,111.71/x
3. Step 3: Cross multiply
   2,043.21x = 2,819.61 × 1,111.71
4. Step 4: Simplify right side
   2,043.21x = 3,134,588.63
5. Step 5: Solve for x
   x = 3,134,588.63/2,043.21
6. Step 6: Final answer
   x = 1,534.15