Finding the Fourth Proportional to 3,885.45, 5,830.61 and 2,587.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,885.45 : 5,830.61 = 2,587.83 : x
2. Step 2: Convert to fraction form
   3,885.45/5,830.61 = 2,587.83/x
3. Step 3: Cross multiply
   3,885.45x = 5,830.61 × 2,587.83
4. Step 4: Simplify right side
   3,885.45x = 15,088,627.48
5. Step 5: Solve for x
   x = 15,088,627.48/3,885.45
6. Step 6: Final answer
   x = 3,883.37