Finding the Fourth Proportional to 2,175.31, 3,262.83 and 615.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,175.31 : 3,262.83 = 615.25 : x
2. Step 2: Convert to fraction form
   2,175.31/3,262.83 = 615.25/x
3. Step 3: Cross multiply
   2,175.31x = 3,262.83 × 615.25
4. Step 4: Simplify right side
   2,175.31x = 2,007,456.16
5. Step 5: Solve for x
   x = 2,007,456.16/2,175.31
6. Step 6: Final answer
   x = 922.84