Finding the Fourth Proportional to 1,304.82, 1,955.61 and 610.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,304.82 : 1,955.61 = 610.58 : x
2. Step 2: Convert to fraction form
   1,304.82/1,955.61 = 610.58/x
3. Step 3: Cross multiply
   1,304.82x = 1,955.61 × 610.58
4. Step 4: Simplify right side
   1,304.82x = 1,194,061.24
5. Step 5: Solve for x
   x = 1,194,061.24/1,304.82
6. Step 6: Final answer
   x = 915.12