Finding the Fourth Proportional to 2,791.60, 4,185.76 and 1,059.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,791.60 : 4,185.76 = 1,059.82 : x
2. Step 2: Convert to fraction form
   2,791.60/4,185.76 = 1,059.82/x
3. Step 3: Cross multiply
   2,791.60x = 4,185.76 × 1,059.82
4. Step 4: Simplify right side
   2,791.60x = 4,436,152.16
5. Step 5: Solve for x
   x = 4,436,152.16/2,791.60
6. Step 6: Final answer
   x = 1,589.11