Finding the Fourth Proportional to 1,141.50, 1,575.27 and 617.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,141.50 : 1,575.27 = 617.53 : x
2. Step 2: Convert to fraction form
   1,141.50/1,575.27 = 617.53/x
3. Step 3: Cross multiply
   1,141.50x = 1,575.27 × 617.53
4. Step 4: Simplify right side
   1,141.50x = 972,770.23
5. Step 5: Solve for x
   x = 972,770.23/1,141.50
6. Step 6: Final answer
   x = 852.19