Finding the Fourth Proportional to 1,395.96, 1,924.56 and 1,002.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395.96 : 1,924.56 = 1,002.28 : x
2. Step 2: Convert to fraction form
   1,395.96/1,924.56 = 1,002.28/x
3. Step 3: Cross multiply
   1,395.96x = 1,924.56 × 1,002.28
4. Step 4: Simplify right side
   1,395.96x = 1,928,948.00
5. Step 5: Solve for x
   x = 1,928,948.00/1,395.96
6. Step 6: Final answer
   x = 1,381.81