Finding the Fourth Proportional to 2,134.52, 3,200.23 and 1,439.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,134.52 : 3,200.23 = 1,439.45 : x
2. Step 2: Convert to fraction form
   2,134.52/3,200.23 = 1,439.45/x
3. Step 3: Cross multiply
   2,134.52x = 3,200.23 × 1,439.45
4. Step 4: Simplify right side
   2,134.52x = 4,606,547.88
5. Step 5: Solve for x
   x = 4,606,547.88/2,134.52
6. Step 6: Final answer
   x = 2,158.12