Finding the Fourth Proportional to 2,513.15, 3,468.18 and 1,394.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,513.15 : 3,468.18 = 1,394.11 : x
2. Step 2: Convert to fraction form
   2,513.15/3,468.18 = 1,394.11/x
3. Step 3: Cross multiply
   2,513.15x = 3,468.18 × 1,394.11
4. Step 4: Simplify right side
   2,513.15x = 4,835,024.42
5. Step 5: Solve for x
   x = 4,835,024.42/2,513.15
6. Step 6: Final answer
   x = 1,923.89