Finding the Fourth Proportional to 2,612.85, 3,605.73 and 1,433.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.85 : 3,605.73 = 1,433.93 : x
2. Step 2: Convert to fraction form
   2,612.85/3,605.73 = 1,433.93/x
3. Step 3: Cross multiply
   2,612.85x = 3,605.73 × 1,433.93
4. Step 4: Simplify right side
   2,612.85x = 5,170,364.42
5. Step 5: Solve for x
   x = 5,170,364.42/2,612.85
6. Step 6: Final answer
   x = 1,978.82