Finding the Fourth Proportional to 2,658.94, 3,671.67 and 1,665.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,658.94 : 3,671.67 = 1,665.91 : x
2. Step 2: Convert to fraction form
   2,658.94/3,671.67 = 1,665.91/x
3. Step 3: Cross multiply
   2,658.94x = 3,671.67 × 1,665.91
4. Step 4: Simplify right side
   2,658.94x = 6,116,671.77
5. Step 5: Solve for x
   x = 6,116,671.77/2,658.94
6. Step 6: Final answer
   x = 2,300.42