Finding the Fourth Proportional to 2,059.16, 3,089.76 and 1,085.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,059.16 : 3,089.76 = 1,085.96 : x
2. Step 2: Convert to fraction form
   2,059.16/3,089.76 = 1,085.96/x
3. Step 3: Cross multiply
   2,059.16x = 3,089.76 × 1,085.96
4. Step 4: Simplify right side
   2,059.16x = 3,355,355.77
5. Step 5: Solve for x
   x = 3,355,355.77/2,059.16
6. Step 6: Final answer
   x = 1,629.48