Finding the Fourth Proportional to 3,885.84, 5,821.20 and 3,449.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,885.84 : 5,821.20 = 3,449.52 : x
2. Step 2: Convert to fraction form
   3,885.84/5,821.20 = 3,449.52/x
3. Step 3: Cross multiply
   3,885.84x = 5,821.20 × 3,449.52
4. Step 4: Simplify right side
   3,885.84x = 20,080,345.82
5. Step 5: Solve for x
   x = 20,080,345.82/3,885.84
6. Step 6: Final answer
   x = 5,167.57