Finding the Fourth Proportional to 3,582.83, 5,373.34 and 1,390.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,582.83 : 5,373.34 = 1,390.37 : x
2. Step 2: Convert to fraction form
   3,582.83/5,373.34 = 1,390.37/x
3. Step 3: Cross multiply
   3,582.83x = 5,373.34 × 1,390.37
4. Step 4: Simplify right side
   3,582.83x = 7,470,900.39
5. Step 5: Solve for x
   x = 7,470,900.39/3,582.83
6. Step 6: Final answer
   x = 2,085.19