Finding the Fourth Proportional to 2,654.14, 3,978.60 and 1,485.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,654.14 : 3,978.60 = 1,485.12 : x
2. Step 2: Convert to fraction form
   2,654.14/3,978.60 = 1,485.12/x
3. Step 3: Cross multiply
   2,654.14x = 3,978.60 × 1,485.12
4. Step 4: Simplify right side
   2,654.14x = 5,908,698.43
5. Step 5: Solve for x
   x = 5,908,698.43/2,654.14
6. Step 6: Final answer
   x = 2,226.22