Finding the Fourth Proportional to 2,612.26, 3,604.86 and 1,433.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.26 : 3,604.86 = 1,433.30 : x
2. Step 2: Convert to fraction form
   2,612.26/3,604.86 = 1,433.30/x
3. Step 3: Cross multiply
   2,612.26x = 3,604.86 × 1,433.30
4. Step 4: Simplify right side
   2,612.26x = 5,166,845.84
5. Step 5: Solve for x
   x = 5,166,845.84/2,612.26
6. Step 6: Final answer
   x = 1,977.92