Finding the Fourth Proportional to 1,141.31, 1,575.01 and 617.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,141.31 : 1,575.01 = 617.34 : x
2. Step 2: Convert to fraction form
   1,141.31/1,575.01 = 617.34/x
3. Step 3: Cross multiply
   1,141.31x = 1,575.01 × 617.34
4. Step 4: Simplify right side
   1,141.31x = 972,323.35
5. Step 5: Solve for x
   x = 972,323.35/1,141.31
6. Step 6: Final answer
   x = 851.93