Finding the Fourth Proportional to 2,099.98, 3,149.79 and 1,059.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099.98 : 3,149.79 = 1,059.58 : x
2. Step 2: Convert to fraction form
   2,099.98/3,149.79 = 1,059.58/x
3. Step 3: Cross multiply
   2,099.98x = 3,149.79 × 1,059.58
4. Step 4: Simplify right side
   2,099.98x = 3,337,454.49
5. Step 5: Solve for x
   x = 3,337,454.49/2,099.98
6. Step 6: Final answer
   x = 1,589.28