Finding the Fourth Proportional to 1,141.41, 1,710.57 and 410.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,141.41 : 1,710.57 = 410.31 : x
2. Step 2: Convert to fraction form
   1,141.41/1,710.57 = 410.31/x
3. Step 3: Cross multiply
   1,141.41x = 1,710.57 × 410.31
4. Step 4: Simplify right side
   1,141.41x = 701,863.98
5. Step 5: Solve for x
   x = 701,863.98/1,141.41
6. Step 6: Final answer
   x = 614.91