Finding the Fourth Proportional to 2,983.98, 4,116.04 and 1,921.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,983.98 : 4,116.04 = 1,921.39 : x
2. Step 2: Convert to fraction form
   2,983.98/4,116.04 = 1,921.39/x
3. Step 3: Cross multiply
   2,983.98x = 4,116.04 × 1,921.39
4. Step 4: Simplify right side
   2,983.98x = 7,908,518.10
5. Step 5: Solve for x
   x = 7,908,518.10/2,983.98
6. Step 6: Final answer
   x = 2,650.33