Finding the Fourth Proportional to 1,818.01, 2,508.06 and 1,228.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,818.01 : 2,508.06 = 1,228.33 : x
2. Step 2: Convert to fraction form
   1,818.01/2,508.06 = 1,228.33/x
3. Step 3: Cross multiply
   1,818.01x = 2,508.06 × 1,228.33
4. Step 4: Simplify right side
   1,818.01x = 3,080,725.34
5. Step 5: Solve for x
   x = 3,080,725.34/1,818.01
6. Step 6: Final answer
   x = 1,694.56