Finding the Fourth Proportional to 1,131.16, 1,697.34 and 546.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131.16 : 1,697.34 = 546.88 : x
2. Step 2: Convert to fraction form
   1,131.16/1,697.34 = 546.88/x
3. Step 3: Cross multiply
   1,131.16x = 1,697.34 × 546.88
4. Step 4: Simplify right side
   1,131.16x = 928,241.30
5. Step 5: Solve for x
   x = 928,241.30/1,131.16
6. Step 6: Final answer
   x = 820.61