Finding the Fourth Proportional to 1,458.58, 2,179.33 and 1,407.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,458.58 : 2,179.33 = 1,407.54 : x
2. Step 2: Convert to fraction form
   1,458.58/2,179.33 = 1,407.54/x
3. Step 3: Cross multiply
   1,458.58x = 2,179.33 × 1,407.54
4. Step 4: Simplify right side
   1,458.58x = 3,067,494.15
5. Step 5: Solve for x
   x = 3,067,494.15/1,458.58
6. Step 6: Final answer
   x = 2,103.07