Finding the Fourth Proportional to 2,158.24, 2,980.82 and 1,458.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158.24 : 2,980.82 = 1,458.40 : x
2. Step 2: Convert to fraction form
   2,158.24/2,980.82 = 1,458.40/x
3. Step 3: Cross multiply
   2,158.24x = 2,980.82 × 1,458.40
4. Step 4: Simplify right side
   2,158.24x = 4,347,227.89
5. Step 5: Solve for x
   x = 4,347,227.89/2,158.24
6. Step 6: Final answer
   x = 2,014.25