Finding the Fourth Proportional to 3,985.42, 5,499.28 and 2,283.67

Step by Step Solution

1. Step 1: Write the proportion equation
   3,985.42 : 5,499.28 = 2,283.67 : x
2. Step 2: Convert to fraction form
   3,985.42/5,499.28 = 2,283.67/x
3. Step 3: Cross multiply
   3,985.42x = 5,499.28 × 2,283.67
4. Step 4: Simplify right side
   3,985.42x = 12,558,540.76
5. Step 5: Solve for x
   x = 12,558,540.76/3,985.42
6. Step 6: Final answer
   x = 3,151.12