Finding the Fourth Proportional to 2,612.46, 3,605.27 and 1,433.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.46 : 3,605.27 = 1,433.57 : x
2. Step 2: Convert to fraction form
   2,612.46/3,605.27 = 1,433.57/x
3. Step 3: Cross multiply
   2,612.46x = 3,605.27 × 1,433.57
4. Step 4: Simplify right side
   2,612.46x = 5,168,408.76
5. Step 5: Solve for x
   x = 5,168,408.76/2,612.46
6. Step 6: Final answer
   x = 1,978.37