Finding the Fourth Proportional to 1,548.54, 2,321.60 and 807.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,548.54 : 2,321.60 = 807.29 : x
2. Step 2: Convert to fraction form
   1,548.54/2,321.60 = 807.29/x
3. Step 3: Cross multiply
   1,548.54x = 2,321.60 × 807.29
4. Step 4: Simplify right side
   1,548.54x = 1,874,188.82
5. Step 5: Solve for x
   x = 1,874,188.82/1,548.54
6. Step 6: Final answer
   x = 1,210.29