Finding the Fourth Proportional to 3,061.58, 4,590.12 and 980.39

Step by Step Solution

1. Step 1: Write the proportion equation
   3,061.58 : 4,590.12 = 980.39 : x
2. Step 2: Convert to fraction form
   3,061.58/4,590.12 = 980.39/x
3. Step 3: Cross multiply
   3,061.58x = 4,590.12 × 980.39
4. Step 4: Simplify right side
   3,061.58x = 4,500,107.75
5. Step 5: Solve for x
   x = 4,500,107.75/3,061.58
6. Step 6: Final answer
   x = 1,469.86