Finding the Fourth Proportional to 3,987.45, 5,980.86 and 2,523.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,987.45 : 5,980.86 = 2,523.38 : x
2. Step 2: Convert to fraction form
   3,987.45/5,980.86 = 2,523.38/x
3. Step 3: Cross multiply
   3,987.45x = 5,980.86 × 2,523.38
4. Step 4: Simplify right side
   3,987.45x = 15,091,952.60
5. Step 5: Solve for x
   x = 15,091,952.60/3,987.45
6. Step 6: Final answer
   x = 3,784.86