Finding the Fourth Proportional to 2,191.59, 3,286.12 and 1,499.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.59 : 3,286.12 = 1,499.09 : x
2. Step 2: Convert to fraction form
   2,191.59/3,286.12 = 1,499.09/x
3. Step 3: Cross multiply
   2,191.59x = 3,286.12 × 1,499.09
4. Step 4: Simplify right side
   2,191.59x = 4,926,182.14
5. Step 5: Solve for x
   x = 4,926,182.14/2,191.59
6. Step 6: Final answer
   x = 2,247.77