Finding the Fourth Proportional to 2,612.43, 3,605.15 and 1,433.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.43 : 3,605.15 = 1,433.50 : x
2. Step 2: Convert to fraction form
   2,612.43/3,605.15 = 1,433.50/x
3. Step 3: Cross multiply
   2,612.43x = 3,605.15 × 1,433.50
4. Step 4: Simplify right side
   2,612.43x = 5,167,977.10
5. Step 5: Solve for x
   x = 5,167,977.10/2,612.43
6. Step 6: Final answer
   x = 1,978.23