Finding the Fourth Proportional to 3,061.20, 4,591.69 and 981.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,061.20 : 4,591.69 = 981.16 : x
2. Step 2: Convert to fraction form
   3,061.20/4,591.69 = 981.16/x
3. Step 3: Cross multiply
   3,061.20x = 4,591.69 × 981.16
4. Step 4: Simplify right side
   3,061.20x = 4,505,168.63
5. Step 5: Solve for x
   x = 4,505,168.63/3,061.20
6. Step 6: Final answer
   x = 1,471.70