Finding the Fourth Proportional to 2,609.82, 3,601.60 and 1,430.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,609.82 : 3,601.60 = 1,430.86 : x
2. Step 2: Convert to fraction form
   2,609.82/3,601.60 = 1,430.86/x
3. Step 3: Cross multiply
   2,609.82x = 3,601.60 × 1,430.86
4. Step 4: Simplify right side
   2,609.82x = 5,153,385.38
5. Step 5: Solve for x
   x = 5,153,385.38/2,609.82
6. Step 6: Final answer
   x = 1,974.61