Finding the Fourth Proportional to 2,513.78, 3,469.02 and 1,394.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,513.78 : 3,469.02 = 1,394.73 : x
2. Step 2: Convert to fraction form
   2,513.78/3,469.02 = 1,394.73/x
3. Step 3: Cross multiply
   2,513.78x = 3,469.02 × 1,394.73
4. Step 4: Simplify right side
   2,513.78x = 4,838,346.26
5. Step 5: Solve for x
   x = 4,838,346.26/2,513.78
6. Step 6: Final answer
   x = 1,924.73