Finding the Fourth Proportional to 3,061.09, 4,591.98 and 980.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,061.09 : 4,591.98 = 980.61 : x
2. Step 2: Convert to fraction form
   3,061.09/4,591.98 = 980.61/x
3. Step 3: Cross multiply
   3,061.09x = 4,591.98 × 980.61
4. Step 4: Simplify right side
   3,061.09x = 4,502,941.51
5. Step 5: Solve for x
   x = 4,502,941.51/3,061.09
6. Step 6: Final answer
   x = 1,471.03