Finding the Fourth Proportional to 2,043.60, 2,820.16 and 1,159.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,043.60 : 2,820.16 = 1,159.35 : x
2. Step 2: Convert to fraction form
   2,043.60/2,820.16 = 1,159.35/x
3. Step 3: Cross multiply
   2,043.60x = 2,820.16 × 1,159.35
4. Step 4: Simplify right side
   2,043.60x = 3,269,552.50
5. Step 5: Solve for x
   x = 3,269,552.50/2,043.60
6. Step 6: Final answer
   x = 1,599.90