Finding the Fourth Proportional to 2,634.15, 3,951.45 and 902.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,634.15 : 3,951.45 = 902.79 : x
2. Step 2: Convert to fraction form
   2,634.15/3,951.45 = 902.79/x
3. Step 3: Cross multiply
   2,634.15x = 3,951.45 × 902.79
4. Step 4: Simplify right side
   2,634.15x = 3,567,329.55
5. Step 5: Solve for x
   x = 3,567,329.55/2,634.15
6. Step 6: Final answer
   x = 1,354.26