Finding the Fourth Proportional to 2,609.16, 3,600.56 and 1,430.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,609.16 : 3,600.56 = 1,430.21 : x
2. Step 2: Convert to fraction form
   2,609.16/3,600.56 = 1,430.21/x
3. Step 3: Cross multiply
   2,609.16x = 3,600.56 × 1,430.21
4. Step 4: Simplify right side
   2,609.16x = 5,149,542.49
5. Step 5: Solve for x
   x = 5,149,542.49/2,609.16
6. Step 6: Final answer
   x = 1,973.64