Finding the Fourth Proportional to 3,811.38, 5,720.34 and 3,046.74

Step by Step Solution

1. Step 1: Write the proportion equation
   3,811.38 : 5,720.34 = 3,046.74 : x
2. Step 2: Convert to fraction form
   3,811.38/5,720.34 = 3,046.74/x
3. Step 3: Cross multiply
   3,811.38x = 5,720.34 × 3,046.74
4. Step 4: Simplify right side
   3,811.38x = 17,428,388.69
5. Step 5: Solve for x
   x = 17,428,388.69/3,811.38
6. Step 6: Final answer
   x = 4,572.72