Finding the Fourth Proportional to 1,648.06, 2,274.33 and 902.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,648.06 : 2,274.33 = 902.02 : x
2. Step 2: Convert to fraction form
   1,648.06/2,274.33 = 902.02/x
3. Step 3: Cross multiply
   1,648.06x = 2,274.33 × 902.02
4. Step 4: Simplify right side
   1,648.06x = 2,051,491.15
5. Step 5: Solve for x
   x = 2,051,491.15/1,648.06
6. Step 6: Final answer
   x = 1,244.79