Finding the Fourth Proportional to 2,609.62, 3,601.25 and 1,430.66

Step by Step Solution

1. Step 1: Write the proportion equation
   2,609.62 : 3,601.25 = 1,430.66 : x
2. Step 2: Convert to fraction form
   2,609.62/3,601.25 = 1,430.66/x
3. Step 3: Cross multiply
   2,609.62x = 3,601.25 × 1,430.66
4. Step 4: Simplify right side
   2,609.62x = 5,152,166.17
5. Step 5: Solve for x
   x = 5,152,166.17/2,609.62
6. Step 6: Final answer
   x = 1,974.30