Finding the Fourth Proportional to 2,099.50, 3,149.28 and 731.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099.50 : 3,149.28 = 731.50 : x
2. Step 2: Convert to fraction form
   2,099.50/3,149.28 = 731.50/x
3. Step 3: Cross multiply
   2,099.50x = 3,149.28 × 731.50
4. Step 4: Simplify right side
   2,099.50x = 2,303,698.32
5. Step 5: Solve for x
   x = 2,303,698.32/2,099.50
6. Step 6: Final answer
   x = 1,097.26