Finding the Fourth Proportional to 3,765.57, 5,648.86 and 1,393.33

Step by Step Solution

1. Step 1: Write the proportion equation
   3,765.57 : 5,648.86 = 1,393.33 : x
2. Step 2: Convert to fraction form
   3,765.57/5,648.86 = 1,393.33/x
3. Step 3: Cross multiply
   3,765.57x = 5,648.86 × 1,393.33
4. Step 4: Simplify right side
   3,765.57x = 7,870,712.51
5. Step 5: Solve for x
   x = 7,870,712.51/3,765.57
6. Step 6: Final answer
   x = 2,090.18