Finding the Fourth Proportional to 2,850.39, 3,934.17 and 1,802.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,850.39 : 3,934.17 = 1,802.25 : x
2. Step 2: Convert to fraction form
   2,850.39/3,934.17 = 1,802.25/x
3. Step 3: Cross multiply
   2,850.39x = 3,934.17 × 1,802.25
4. Step 4: Simplify right side
   2,850.39x = 7,090,357.88
5. Step 5: Solve for x
   x = 7,090,357.88/2,850.39
6. Step 6: Final answer
   x = 2,487.50