Finding the Fourth Proportional to 2,259.10, 3,164.90 and 2,259.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,259.10 : 3,164.90 = 2,259.10 : x
2. Step 2: Convert to fraction form
   2,259.10/3,164.90 = 2,259.10/x
3. Step 3: Cross multiply
   2,259.10x = 3,164.90 × 2,259.10
4. Step 4: Simplify right side
   2,259.10x = 7,149,825.59
5. Step 5: Solve for x
   x = 7,149,825.59/2,259.10
6. Step 6: Final answer
   x = 3,164.90