Finding the Fourth Proportional to 2,065.50, 3,099.47 and 911.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,065.50 : 3,099.47 = 911.25 : x
2. Step 2: Convert to fraction form
   2,065.50/3,099.47 = 911.25/x
3. Step 3: Cross multiply
   2,065.50x = 3,099.47 × 911.25
4. Step 4: Simplify right side
   2,065.50x = 2,824,387.48
5. Step 5: Solve for x
   x = 2,824,387.48/2,065.50
6. Step 6: Final answer
   x = 1,367.41