Finding the Fourth Proportional to 2,613.15, 3,605.96 and 1,433.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.15 : 3,605.96 = 1,433.99 : x
2. Step 2: Convert to fraction form
   2,613.15/3,605.96 = 1,433.99/x
3. Step 3: Cross multiply
   2,613.15x = 3,605.96 × 1,433.99
4. Step 4: Simplify right side
   2,613.15x = 5,170,885.38
5. Step 5: Solve for x
   x = 5,170,885.38/2,613.15
6. Step 6: Final answer
   x = 1,978.79