Finding the Fourth Proportional to 1,908.58, 2,632.89 and 1,208.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,908.58 : 2,632.89 = 1,208.74 : x
2. Step 2: Convert to fraction form
   1,908.58/2,632.89 = 1,208.74/x
3. Step 3: Cross multiply
   1,908.58x = 2,632.89 × 1,208.74
4. Step 4: Simplify right side
   1,908.58x = 3,182,479.46
5. Step 5: Solve for x
   x = 3,182,479.46/1,908.58
6. Step 6: Final answer
   x = 1,667.46