Finding the Fourth Proportional to 2,612.96, 3,605.94 and 1,434.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.96 : 3,605.94 = 1,434.03 : x
2. Step 2: Convert to fraction form
   2,612.96/3,605.94 = 1,434.03/x
3. Step 3: Cross multiply
   2,612.96x = 3,605.94 × 1,434.03
4. Step 4: Simplify right side
   2,612.96x = 5,171,026.14
5. Step 5: Solve for x
   x = 5,171,026.14/2,612.96
6. Step 6: Final answer
   x = 1,978.99