Finding the Fourth Proportional to 2,978.12, 4,454.04 and 1,804.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.12 : 4,454.04 = 1,804.88 : x
2. Step 2: Convert to fraction form
   2,978.12/4,454.04 = 1,804.88/x
3. Step 3: Cross multiply
   2,978.12x = 4,454.04 × 1,804.88
4. Step 4: Simplify right side
   2,978.12x = 8,039,007.72
5. Step 5: Solve for x
   x = 8,039,007.72/2,978.12
6. Step 6: Final answer
   x = 2,699.36