Finding the Fourth Proportional to 2,389.57, 3,298.38 and 1,548.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,389.57 : 3,298.38 = 1,548.79 : x
2. Step 2: Convert to fraction form
   2,389.57/3,298.38 = 1,548.79/x
3. Step 3: Cross multiply
   2,389.57x = 3,298.38 × 1,548.79
4. Step 4: Simplify right side
   2,389.57x = 5,108,497.96
5. Step 5: Solve for x
   x = 5,108,497.96/2,389.57
6. Step 6: Final answer
   x = 2,137.83