Finding the Fourth Proportional to 1,648.52, 2,274.95 and 902.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,648.52 : 2,274.95 = 902.48 : x
2. Step 2: Convert to fraction form
   1,648.52/2,274.95 = 902.48/x
3. Step 3: Cross multiply
   1,648.52x = 2,274.95 × 902.48
4. Step 4: Simplify right side
   1,648.52x = 2,053,087.76
5. Step 5: Solve for x
   x = 2,053,087.76/1,648.52
6. Step 6: Final answer
   x = 1,245.41