Finding the Fourth Proportional to 2,592.12, 3,576.78 and 1,661.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,592.12 : 3,576.78 = 1,661.88 : x
2. Step 2: Convert to fraction form
   2,592.12/3,576.78 = 1,661.88/x
3. Step 3: Cross multiply
   2,592.12x = 3,576.78 × 1,661.88
4. Step 4: Simplify right side
   2,592.12x = 5,944,179.15
5. Step 5: Solve for x
   x = 5,944,179.15/2,592.12
6. Step 6: Final answer
   x = 2,293.17