Finding the Fourth Proportional to 2,609.23, 3,600.75 and 1,430.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,609.23 : 3,600.75 = 1,430.28 : x
2. Step 2: Convert to fraction form
   2,609.23/3,600.75 = 1,430.28/x
3. Step 3: Cross multiply
   2,609.23x = 3,600.75 × 1,430.28
4. Step 4: Simplify right side
   2,609.23x = 5,150,080.71
5. Step 5: Solve for x
   x = 5,150,080.71/2,609.23
6. Step 6: Final answer
   x = 1,973.79