Finding the Fourth Proportional to 2,518.24, 3,475.18 and 1,399.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,518.24 : 3,475.18 = 1,399.10 : x
2. Step 2: Convert to fraction form
   2,518.24/3,475.18 = 1,399.10/x
3. Step 3: Cross multiply
   2,518.24x = 3,475.18 × 1,399.10
4. Step 4: Simplify right side
   2,518.24x = 4,862,124.34
5. Step 5: Solve for x
   x = 4,862,124.34/2,518.24
6. Step 6: Final answer
   x = 1,930.76