Finding the Fourth Proportional to 2,663.89, 3,986.01 and 1,884.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,663.89 : 3,986.01 = 1,884.67 : x
2. Step 2: Convert to fraction form
   2,663.89/3,986.01 = 1,884.67/x
3. Step 3: Cross multiply
   2,663.89x = 3,986.01 × 1,884.67
4. Step 4: Simplify right side
   2,663.89x = 7,512,303.50
5. Step 5: Solve for x
   x = 7,512,303.50/2,663.89
6. Step 6: Final answer
   x = 2,820.05