Finding the Fourth Proportional to 2,156.46, 3,239.30 and 1,544.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,156.46 : 3,239.30 = 1,544.10 : x
2. Step 2: Convert to fraction form
   2,156.46/3,239.30 = 1,544.10/x
3. Step 3: Cross multiply
   2,156.46x = 3,239.30 × 1,544.10
4. Step 4: Simplify right side
   2,156.46x = 5,001,819.14
5. Step 5: Solve for x
   x = 5,001,819.14/2,156.46
6. Step 6: Final answer
   x = 2,319.45