Finding the Fourth Proportional to 2,612.11, 3,604.69 and 1,433.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.11 : 3,604.69 = 1,433.18 : x
2. Step 2: Convert to fraction form
   2,612.11/3,604.69 = 1,433.18/x
3. Step 3: Cross multiply
   2,612.11x = 3,604.69 × 1,433.18
4. Step 4: Simplify right side
   2,612.11x = 5,166,169.61
5. Step 5: Solve for x
   x = 5,166,169.61/2,612.11
6. Step 6: Final answer
   x = 1,977.78