Finding the Fourth Proportional to 2,178.25, 3,005.32 and 1,233.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,178.25 : 3,005.32 = 1,233.89 : x
2. Step 2: Convert to fraction form
   2,178.25/3,005.32 = 1,233.89/x
3. Step 3: Cross multiply
   2,178.25x = 3,005.32 × 1,233.89
4. Step 4: Simplify right side
   2,178.25x = 3,708,229.77
5. Step 5: Solve for x
   x = 3,708,229.77/2,178.25
6. Step 6: Final answer
   x = 1,702.39