Finding the Fourth Proportional to 3,992.88, 5,987.34 and 2,327.57

Step by Step Solution

1. Step 1: Write the proportion equation
   3,992.88 : 5,987.34 = 2,327.57 : x
2. Step 2: Convert to fraction form
   3,992.88/5,987.34 = 2,327.57/x
3. Step 3: Cross multiply
   3,992.88x = 5,987.34 × 2,327.57
4. Step 4: Simplify right side
   3,992.88x = 13,935,967.93
5. Step 5: Solve for x
   x = 13,935,967.93/3,992.88
6. Step 6: Final answer
   x = 3,490.20