Finding the Fourth Proportional to 3,782.22, 5,674.77 and 1,317.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,782.22 : 5,674.77 = 1,317.30 : x
2. Step 2: Convert to fraction form
   3,782.22/5,674.77 = 1,317.30/x
3. Step 3: Cross multiply
   3,782.22x = 5,674.77 × 1,317.30
4. Step 4: Simplify right side
   3,782.22x = 7,475,374.52
5. Step 5: Solve for x
   x = 7,475,374.52/3,782.22
6. Step 6: Final answer
   x = 1,976.45