Finding the Fourth Proportional to 3,967.67, 5,475.71 and 2,199.39

Step by Step Solution

1. Step 1: Write the proportion equation
   3,967.67 : 5,475.71 = 2,199.39 : x
2. Step 2: Convert to fraction form
   3,967.67/5,475.71 = 2,199.39/x
3. Step 3: Cross multiply
   3,967.67x = 5,475.71 × 2,199.39
4. Step 4: Simplify right side
   3,967.67x = 12,043,221.82
5. Step 5: Solve for x
   x = 12,043,221.82/3,967.67
6. Step 6: Final answer
   x = 3,035.34