Finding the Fourth Proportional to 3,933.60, 5,892.84 and 2,196.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,933.60 : 5,892.84 = 2,196.96 : x
2. Step 2: Convert to fraction form
   3,933.60/5,892.84 = 2,196.96/x
3. Step 3: Cross multiply
   3,933.60x = 5,892.84 × 2,196.96
4. Step 4: Simplify right side
   3,933.60x = 12,946,333.77
5. Step 5: Solve for x
   x = 12,946,333.77/3,933.60
6. Step 6: Final answer
   x = 3,291.22