Finding the Fourth Proportional to 2,190.54, 3,022.74 and 1,306.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,190.54 : 3,022.74 = 1,306.02 : x
2. Step 2: Convert to fraction form
   2,190.54/3,022.74 = 1,306.02/x
3. Step 3: Cross multiply
   2,190.54x = 3,022.74 × 1,306.02
4. Step 4: Simplify right side
   2,190.54x = 3,947,758.89
5. Step 5: Solve for x
   x = 3,947,758.89/2,190.54
6. Step 6: Final answer
   x = 1,802.19