Finding the Fourth Proportional to 2,040.30, 3,062.88 and 1,218.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,040.30 : 3,062.88 = 1,218.96 : x
2. Step 2: Convert to fraction form
   2,040.30/3,062.88 = 1,218.96/x
3. Step 3: Cross multiply
   2,040.30x = 3,062.88 × 1,218.96
4. Step 4: Simplify right side
   2,040.30x = 3,733,528.20
5. Step 5: Solve for x
   x = 3,733,528.20/2,040.30
6. Step 6: Final answer
   x = 1,829.89