Finding the Fourth Proportional to 2,612.89, 3,605.82 and 1,434.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.89 : 3,605.82 = 1,434.01 : x
2. Step 2: Convert to fraction form
   2,612.89/3,605.82 = 1,434.01/x
3. Step 3: Cross multiply
   2,612.89x = 3,605.82 × 1,434.01
4. Step 4: Simplify right side
   2,612.89x = 5,170,756.74
5. Step 5: Solve for x
   x = 5,170,756.74/2,612.89
6. Step 6: Final answer
   x = 1,978.94