Finding the Fourth Proportional to 3,372.82, 5,057.91 and 1,398.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,372.82 : 5,057.91 = 1,398.76 : x
2. Step 2: Convert to fraction form
   3,372.82/5,057.91 = 1,398.76/x
3. Step 3: Cross multiply
   3,372.82x = 5,057.91 × 1,398.76
4. Step 4: Simplify right side
   3,372.82x = 7,074,789.55
5. Step 5: Solve for x
   x = 7,074,789.55/3,372.82
6. Step 6: Final answer
   x = 2,097.59