Finding the Fourth Proportional to 2,179.83, 3,008.25 and 1,235.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,179.83 : 3,008.25 = 1,235.61 : x
2. Step 2: Convert to fraction form
   2,179.83/3,008.25 = 1,235.61/x
3. Step 3: Cross multiply
   2,179.83x = 3,008.25 × 1,235.61
4. Step 4: Simplify right side
   2,179.83x = 3,717,023.78
5. Step 5: Solve for x
   x = 3,717,023.78/2,179.83
6. Step 6: Final answer
   x = 1,705.19