Finding the Fourth Proportional to 2,612.42, 3,605.22 and 1,433.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.42 : 3,605.22 = 1,433.58 : x
2. Step 2: Convert to fraction form
   2,612.42/3,605.22 = 1,433.58/x
3. Step 3: Cross multiply
   2,612.42x = 3,605.22 × 1,433.58
4. Step 4: Simplify right side
   2,612.42x = 5,168,371.29
5. Step 5: Solve for x
   x = 5,168,371.29/2,612.42
6. Step 6: Final answer
   x = 1,978.38