Finding the Fourth Proportional to 5,690.28, 7,849.54 and 3,922.76

Step by Step Solution

1. Step 1: Write the proportion equation
   5,690.28 : 7,849.54 = 3,922.76 : x
2. Step 2: Convert to fraction form
   5,690.28/7,849.54 = 3,922.76/x
3. Step 3: Cross multiply
   5,690.28x = 7,849.54 × 3,922.76
4. Step 4: Simplify right side
   5,690.28x = 30,791,861.53
5. Step 5: Solve for x
   x = 30,791,861.53/5,690.28
6. Step 6: Final answer
   x = 5,411.31