Finding the Fourth Proportional to 2,050.39, 3,073.69 and 817.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,050.39 : 3,073.69 = 817.50 : x
2. Step 2: Convert to fraction form
   2,050.39/3,073.69 = 817.50/x
3. Step 3: Cross multiply
   2,050.39x = 3,073.69 × 817.50
4. Step 4: Simplify right side
   2,050.39x = 2,512,741.58
5. Step 5: Solve for x
   x = 2,512,741.58/2,050.39
6. Step 6: Final answer
   x = 1,225.49