Finding the Fourth Proportional to 1,648.88, 2,275.46 and 902.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,648.88 : 2,275.46 = 902.84 : x
2. Step 2: Convert to fraction form
   1,648.88/2,275.46 = 902.84/x
3. Step 3: Cross multiply
   1,648.88x = 2,275.46 × 902.84
4. Step 4: Simplify right side
   1,648.88x = 2,054,376.31
5. Step 5: Solve for x
   x = 2,054,376.31/1,648.88
6. Step 6: Final answer
   x = 1,245.92