Finding the Fourth Proportional to 2,108.62, 2,903.59 and 1,665.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,108.62 : 2,903.59 = 1,665.14 : x
2. Step 2: Convert to fraction form
   2,108.62/2,903.59 = 1,665.14/x
3. Step 3: Cross multiply
   2,108.62x = 2,903.59 × 1,665.14
4. Step 4: Simplify right side
   2,108.62x = 4,834,883.85
5. Step 5: Solve for x
   x = 4,834,883.85/2,108.62
6. Step 6: Final answer
   x = 2,292.91