Finding the Fourth Proportional to 2,130.55, 3,196.29 and 1,589.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,130.55 : 3,196.29 = 1,589.20 : x
2. Step 2: Convert to fraction form
   2,130.55/3,196.29 = 1,589.20/x
3. Step 3: Cross multiply
   2,130.55x = 3,196.29 × 1,589.20
4. Step 4: Simplify right side
   2,130.55x = 5,079,544.07
5. Step 5: Solve for x
   x = 5,079,544.07/2,130.55
6. Step 6: Final answer
   x = 2,384.15