Finding the Fourth Proportional to 1,469.71, 2,028.23 and 902.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,469.71 : 2,028.23 = 902.71 : x
2. Step 2: Convert to fraction form
   1,469.71/2,028.23 = 902.71/x
3. Step 3: Cross multiply
   1,469.71x = 2,028.23 × 902.71
4. Step 4: Simplify right side
   1,469.71x = 1,830,904.91
5. Step 5: Solve for x
   x = 1,830,904.91/1,469.71
6. Step 6: Final answer
   x = 1,245.76