Finding the Fourth Proportional to 3,061.05, 4,591.49 and 869.75

Step by Step Solution

1. Step 1: Write the proportion equation
   3,061.05 : 4,591.49 = 869.75 : x
2. Step 2: Convert to fraction form
   3,061.05/4,591.49 = 869.75/x
3. Step 3: Cross multiply
   3,061.05x = 4,591.49 × 869.75
4. Step 4: Simplify right side
   3,061.05x = 3,993,448.43
5. Step 5: Solve for x
   x = 3,993,448.43/3,061.05
6. Step 6: Final answer
   x = 1,304.60