Finding the Fourth Proportional to 2,293.15, 3,439.18 and 1,059.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,293.15 : 3,439.18 = 1,059.38 : x
2. Step 2: Convert to fraction form
   2,293.15/3,439.18 = 1,059.38/x
3. Step 3: Cross multiply
   2,293.15x = 3,439.18 × 1,059.38
4. Step 4: Simplify right side
   2,293.15x = 3,643,398.51
5. Step 5: Solve for x
   x = 3,643,398.51/2,293.15
6. Step 6: Final answer
   x = 1,588.82