Finding the Fourth Proportional to 1,180.51, 1,770.72 and 314.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,180.51 : 1,770.72 = 314.82 : x
2. Step 2: Convert to fraction form
   1,180.51/1,770.72 = 314.82/x
3. Step 3: Cross multiply
   1,180.51x = 1,770.72 × 314.82
4. Step 4: Simplify right side
   1,180.51x = 557,449.22
5. Step 5: Solve for x
   x = 557,449.22/1,180.51
6. Step 6: Final answer
   x = 472.21