Finding the Fourth Proportional to 2,043.88, 2,820.72 and 1,159.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,043.88 : 2,820.72 = 1,159.92 : x
2. Step 2: Convert to fraction form
   2,043.88/2,820.72 = 1,159.92/x
3. Step 3: Cross multiply
   2,043.88x = 2,820.72 × 1,159.92
4. Step 4: Simplify right side
   2,043.88x = 3,271,809.54
5. Step 5: Solve for x
   x = 3,271,809.54/2,043.88
6. Step 6: Final answer
   x = 1,600.78