Finding the Fourth Proportional to 3,789.58, 5,686.02 and 1,326.17

Step by Step Solution

1. Step 1: Write the proportion equation
   3,789.58 : 5,686.02 = 1,326.17 : x
2. Step 2: Convert to fraction form
   3,789.58/5,686.02 = 1,326.17/x
3. Step 3: Cross multiply
   3,789.58x = 5,686.02 × 1,326.17
4. Step 4: Simplify right side
   3,789.58x = 7,540,600.71
5. Step 5: Solve for x
   x = 7,540,600.71/3,789.58
6. Step 6: Final answer
   x = 1,989.83