Finding the Fourth Proportional to 1,171.33, 1,755.78 and 761.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,171.33 : 1,755.78 = 761.27 : x
2. Step 2: Convert to fraction form
   1,171.33/1,755.78 = 761.27/x
3. Step 3: Cross multiply
   1,171.33x = 1,755.78 × 761.27
4. Step 4: Simplify right side
   1,171.33x = 1,336,611.01
5. Step 5: Solve for x
   x = 1,336,611.01/1,171.33
6. Step 6: Final answer
   x = 1,141.11