Finding the Fourth Proportional to 2,666.28, 3,671.46 and 2,292.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,666.28 : 3,671.46 = 2,292.72 : x
2. Step 2: Convert to fraction form
   2,666.28/3,671.46 = 2,292.72/x
3. Step 3: Cross multiply
   2,666.28x = 3,671.46 × 2,292.72
4. Step 4: Simplify right side
   2,666.28x = 8,417,629.77
5. Step 5: Solve for x
   x = 8,417,629.77/2,666.28
6. Step 6: Final answer
   x = 3,157.07