Finding the Fourth Proportional to 2,518.23, 3,474.83 and 1,399.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,518.23 : 3,474.83 = 1,399.02 : x
2. Step 2: Convert to fraction form
   2,518.23/3,474.83 = 1,399.02/x
3. Step 3: Cross multiply
   2,518.23x = 3,474.83 × 1,399.02
4. Step 4: Simplify right side
   2,518.23x = 4,861,356.67
5. Step 5: Solve for x
   x = 4,861,356.67/2,518.23
6. Step 6: Final answer
   x = 1,930.47