Finding the Fourth Proportional to 2,586.41, 3,569.20 and 1,436.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,586.41 : 3,569.20 = 1,436.57 : x
2. Step 2: Convert to fraction form
   2,586.41/3,569.20 = 1,436.57/x
3. Step 3: Cross multiply
   2,586.41x = 3,569.20 × 1,436.57
4. Step 4: Simplify right side
   2,586.41x = 5,127,384.21
5. Step 5: Solve for x
   x = 5,127,384.21/2,586.41
6. Step 6: Final answer
   x = 1,982.43