Finding the Fourth Proportional to 1,548.37, 2,320.45 and 854.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,548.37 : 2,320.45 = 854.00 : x
2. Step 2: Convert to fraction form
   1,548.37/2,320.45 = 854.00/x
3. Step 3: Cross multiply
   1,548.37x = 2,320.45 × 854.00
4. Step 4: Simplify right side
   1,548.37x = 1,981,648.43
5. Step 5: Solve for x
   x = 1,981,648.43/1,548.37
6. Step 6: Final answer
   x = 1,279.83