Finding the Fourth Proportional to 2,178.18, 3,005.91 and 1,233.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,178.18 : 3,005.91 = 1,233.98 : x
2. Step 2: Convert to fraction form
   2,178.18/3,005.91 = 1,233.98/x
3. Step 3: Cross multiply
   2,178.18x = 3,005.91 × 1,233.98
4. Step 4: Simplify right side
   2,178.18x = 3,709,217.79
5. Step 5: Solve for x
   x = 3,709,217.79/2,178.18
6. Step 6: Final answer
   x = 1,702.90