Finding the Fourth Proportional to 1,314.39, 1,972.46 and 544.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,314.39 : 1,972.46 = 544.89 : x
2. Step 2: Convert to fraction form
   1,314.39/1,972.46 = 544.89/x
3. Step 3: Cross multiply
   1,314.39x = 1,972.46 × 544.89
4. Step 4: Simplify right side
   1,314.39x = 1,074,761.14
5. Step 5: Solve for x
   x = 1,074,761.14/1,314.39
6. Step 6: Final answer
   x = 817.69