Finding the Fourth Proportional to 2,293.65, 3,435.89 and 1,059.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,293.65 : 3,435.89 = 1,059.30 : x
2. Step 2: Convert to fraction form
   2,293.65/3,435.89 = 1,059.30/x
3. Step 3: Cross multiply
   2,293.65x = 3,435.89 × 1,059.30
4. Step 4: Simplify right side
   2,293.65x = 3,639,632.98
5. Step 5: Solve for x
   x = 3,639,632.98/2,293.65
6. Step 6: Final answer
   x = 1,586.83