Finding the Fourth Proportional to 1,890.42, 2,832.54 and 1,818.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,890.42 : 2,832.54 = 1,818.42 : x
2. Step 2: Convert to fraction form
   1,890.42/2,832.54 = 1,818.42/x
3. Step 3: Cross multiply
   1,890.42x = 2,832.54 × 1,818.42
4. Step 4: Simplify right side
   1,890.42x = 5,150,747.39
5. Step 5: Solve for x
   x = 5,150,747.39/1,890.42
6. Step 6: Final answer
   x = 2,724.66