Finding the Fourth Proportional to 1,131.42, 1,697.67 and 482.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131.42 : 1,697.67 = 482.61 : x
2. Step 2: Convert to fraction form
   1,131.42/1,697.67 = 482.61/x
3. Step 3: Cross multiply
   1,131.42x = 1,697.67 × 482.61
4. Step 4: Simplify right side
   1,131.42x = 819,312.52
5. Step 5: Solve for x
   x = 819,312.52/1,131.42
6. Step 6: Final answer
   x = 724.15