Finding the Fourth Proportional to 2,976.98, 4,111.74 and 1,980.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,976.98 : 4,111.74 = 1,980.47 : x
2. Step 2: Convert to fraction form
   2,976.98/4,111.74 = 1,980.47/x
3. Step 3: Cross multiply
   2,976.98x = 4,111.74 × 1,980.47
4. Step 4: Simplify right side
   2,976.98x = 8,143,188.00
5. Step 5: Solve for x
   x = 8,143,188.00/2,976.98
6. Step 6: Final answer
   x = 2,735.39