Finding the Fourth Proportional to 1,314.28, 1,969.82 and 544.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,314.28 : 1,969.82 = 544.04 : x
2. Step 2: Convert to fraction form
   1,314.28/1,969.82 = 544.04/x
3. Step 3: Cross multiply
   1,314.28x = 1,969.82 × 544.04
4. Step 4: Simplify right side
   1,314.28x = 1,071,660.87
5. Step 5: Solve for x
   x = 1,071,660.87/1,314.28
6. Step 6: Final answer
   x = 815.40