Finding the Fourth Proportional to 2,464.40, 3,705.12 and 1,980.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,464.40 : 3,705.12 = 1,980.83 : x
2. Step 2: Convert to fraction form
   2,464.40/3,705.12 = 1,980.83/x
3. Step 3: Cross multiply
   2,464.40x = 3,705.12 × 1,980.83
4. Step 4: Simplify right side
   2,464.40x = 7,339,194.32
5. Step 5: Solve for x
   x = 7,339,194.32/2,464.40
6. Step 6: Final answer
   x = 2,978.09