Finding the Fourth Proportional to 2,236.71, 3,083.34 and 1,920.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,236.71 : 3,083.34 = 1,920.45 : x
2. Step 2: Convert to fraction form
   2,236.71/3,083.34 = 1,920.45/x
3. Step 3: Cross multiply
   2,236.71x = 3,083.34 × 1,920.45
4. Step 4: Simplify right side
   2,236.71x = 5,921,400.30
5. Step 5: Solve for x
   x = 5,921,400.30/2,236.71
6. Step 6: Final answer
   x = 2,647.37