Finding the Fourth Proportional to 2,149.34, 3,219.69 and 1,818.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,149.34 : 3,219.69 = 1,818.86 : x
2. Step 2: Convert to fraction form
   2,149.34/3,219.69 = 1,818.86/x
3. Step 3: Cross multiply
   2,149.34x = 3,219.69 × 1,818.86
4. Step 4: Simplify right side
   2,149.34x = 5,856,165.35
5. Step 5: Solve for x
   x = 5,856,165.35/2,149.34
6. Step 6: Final answer
   x = 2,724.63