Finding the Fourth Proportional to 3,789.59, 5,682.15 and 1,323.74

Step by Step Solution

1. Step 1: Write the proportion equation
   3,789.59 : 5,682.15 = 1,323.74 : x
2. Step 2: Convert to fraction form
   3,789.59/5,682.15 = 1,323.74/x
3. Step 3: Cross multiply
   3,789.59x = 5,682.15 × 1,323.74
4. Step 4: Simplify right side
   3,789.59x = 7,521,703.45
5. Step 5: Solve for x
   x = 7,521,703.45/3,789.59
6. Step 6: Final answer
   x = 1,984.84