Finding the Fourth Proportional to 3,930.34, 5,417.37 and 2,670.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,930.34 : 5,417.37 = 2,670.82 : x
2. Step 2: Convert to fraction form
   3,930.34/5,417.37 = 2,670.82/x
3. Step 3: Cross multiply
   3,930.34x = 5,417.37 × 2,670.82
4. Step 4: Simplify right side
   3,930.34x = 14,468,820.14
5. Step 5: Solve for x
   x = 14,468,820.14/3,930.34
6. Step 6: Final answer
   x = 3,681.32