Finding the Fourth Proportional to 1,796.91, 2,478.69 and 1,208.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,796.91 : 2,478.69 = 1,208.25 : x
2. Step 2: Convert to fraction form
   1,796.91/2,478.69 = 1,208.25/x
3. Step 3: Cross multiply
   1,796.91x = 2,478.69 × 1,208.25
4. Step 4: Simplify right side
   1,796.91x = 2,994,877.19
5. Step 5: Solve for x
   x = 2,994,877.19/1,796.91
6. Step 6: Final answer
   x = 1,666.68