Finding the Fourth Proportional to 1,182.32, 1,773.42 and 488.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,182.32 : 1,773.42 = 488.78 : x
2. Step 2: Convert to fraction form
   1,182.32/1,773.42 = 488.78/x
3. Step 3: Cross multiply
   1,182.32x = 1,773.42 × 488.78
4. Step 4: Simplify right side
   1,182.32x = 866,812.23
5. Step 5: Solve for x
   x = 866,812.23/1,182.32
6. Step 6: Final answer
   x = 733.15