Finding the Fourth Proportional to 3,436.69, 5,152.72 and 1,586.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,436.69 : 5,152.72 = 1,586.78 : x
2. Step 2: Convert to fraction form
   3,436.69/5,152.72 = 1,586.78/x
3. Step 3: Cross multiply
   3,436.69x = 5,152.72 × 1,586.78
4. Step 4: Simplify right side
   3,436.69x = 8,176,229.32
5. Step 5: Solve for x
   x = 8,176,229.32/3,436.69
6. Step 6: Final answer
   x = 2,379.10