Finding the Fourth Proportional to 2,654.32, 3,660.24 and 1,990.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,654.32 : 3,660.24 = 1,990.12 : x
2. Step 2: Convert to fraction form
   2,654.32/3,660.24 = 1,990.12/x
3. Step 3: Cross multiply
   2,654.32x = 3,660.24 × 1,990.12
4. Step 4: Simplify right side
   2,654.32x = 7,284,316.83
5. Step 5: Solve for x
   x = 7,284,316.83/2,654.32
6. Step 6: Final answer
   x = 2,744.33