Finding the Fourth Proportional to 2,609.08, 3,600.56 and 1,430.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,609.08 : 3,600.56 = 1,430.28 : x
2. Step 2: Convert to fraction form
   2,609.08/3,600.56 = 1,430.28/x
3. Step 3: Cross multiply
   2,609.08x = 3,600.56 × 1,430.28
4. Step 4: Simplify right side
   2,609.08x = 5,149,808.96
5. Step 5: Solve for x
   x = 5,149,808.96/2,609.08
6. Step 6: Final answer
   x = 1,973.80