Finding the Fourth Proportional to 2,139.58, 2,960.70 and 1,824.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139.58 : 2,960.70 = 1,824.34 : x
2. Step 2: Convert to fraction form
   2,139.58/2,960.70 = 1,824.34/x
3. Step 3: Cross multiply
   2,139.58x = 2,960.70 × 1,824.34
4. Step 4: Simplify right side
   2,139.58x = 5,401,325.01
5. Step 5: Solve for x
   x = 5,401,325.01/2,139.58
6. Step 6: Final answer
   x = 2,524.48