Finding the Fourth Proportional to 2,980.31, 4,470.49 and 2,055.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,980.31 : 4,470.49 = 2,055.63 : x
2. Step 2: Convert to fraction form
   2,980.31/4,470.49 = 2,055.63/x
3. Step 3: Cross multiply
   2,980.31x = 4,470.49 × 2,055.63
4. Step 4: Simplify right side
   2,980.31x = 9,189,667.55
5. Step 5: Solve for x
   x = 9,189,667.55/2,980.31
6. Step 6: Final answer
   x = 3,083.46