Finding the Fourth Proportional to 1,548.03, 2,320.83 and 807.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,548.03 : 2,320.83 = 807.31 : x
2. Step 2: Convert to fraction form
   1,548.03/2,320.83 = 807.31/x
3. Step 3: Cross multiply
   1,548.03x = 2,320.83 × 807.31
4. Step 4: Simplify right side
   1,548.03x = 1,873,629.27
5. Step 5: Solve for x
   x = 1,873,629.27/1,548.03
6. Step 6: Final answer
   x = 1,210.33