Finding the Fourth Proportional to 3,061.36, 4,591.32 and 869.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,061.36 : 4,591.32 = 869.50 : x
2. Step 2: Convert to fraction form
   3,061.36/4,591.32 = 869.50/x
3. Step 3: Cross multiply
   3,061.36x = 4,591.32 × 869.50
4. Step 4: Simplify right side
   3,061.36x = 3,992,152.74
5. Step 5: Solve for x
   x = 3,992,152.74/3,061.36
6. Step 6: Final answer
   x = 1,304.05