Finding the Fourth Proportional to 1,491.50, 2,058.28 and 902.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,491.50 : 2,058.28 = 902.04 : x
2. Step 2: Convert to fraction form
   1,491.50/2,058.28 = 902.04/x
3. Step 3: Cross multiply
   1,491.50x = 2,058.28 × 902.04
4. Step 4: Simplify right side
   1,491.50x = 1,856,650.89
5. Step 5: Solve for x
   x = 1,856,650.89/1,491.50
6. Step 6: Final answer
   x = 1,244.82