Finding the Fourth Proportional to 2,291.46, 3,436.56 and 1,059.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,291.46 : 3,436.56 = 1,059.45 : x
2. Step 2: Convert to fraction form
   2,291.46/3,436.56 = 1,059.45/x
3. Step 3: Cross multiply
   2,291.46x = 3,436.56 × 1,059.45
4. Step 4: Simplify right side
   2,291.46x = 3,640,863.49
5. Step 5: Solve for x
   x = 3,640,863.49/2,291.46
6. Step 6: Final answer
   x = 1,588.88