Finding the Fourth Proportional to 3,417.14, 5,123.60 and 3,127.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,417.14 : 5,123.60 = 3,127.10 : x
2. Step 2: Convert to fraction form
   3,417.14/5,123.60 = 3,127.10/x
3. Step 3: Cross multiply
   3,417.14x = 5,123.60 × 3,127.10
4. Step 4: Simplify right side
   3,417.14x = 16,021,968.31
5. Step 5: Solve for x
   x = 16,021,968.31/3,417.14
6. Step 6: Final answer
   x = 4,688.71