Finding the Fourth Proportional to 2,259.56, 3,389.34 and 1,106.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,259.56 : 3,389.34 = 1,106.12 : x
2. Step 2: Convert to fraction form
   2,259.56/3,389.34 = 1,106.12/x
3. Step 3: Cross multiply
   2,259.56x = 3,389.34 × 1,106.12
4. Step 4: Simplify right side
   2,259.56x = 3,749,016.76
5. Step 5: Solve for x
   x = 3,749,016.76/2,259.56
6. Step 6: Final answer
   x = 1,659.18