Finding the Fourth Proportional to 2,191.98, 3,284.73 and 1,458.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.98 : 3,284.73 = 1,458.90 : x
2. Step 2: Convert to fraction form
   2,191.98/3,284.73 = 1,458.90/x
3. Step 3: Cross multiply
   2,191.98x = 3,284.73 × 1,458.90
4. Step 4: Simplify right side
   2,191.98x = 4,792,092.60
5. Step 5: Solve for x
   x = 4,792,092.60/2,191.98
6. Step 6: Final answer
   x = 2,186.19