Finding the Fourth Proportional to 1,168.10, 1,748.67 and 756.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,168.10 : 1,748.67 = 756.05 : x
2. Step 2: Convert to fraction form
   1,168.10/1,748.67 = 756.05/x
3. Step 3: Cross multiply
   1,168.10x = 1,748.67 × 756.05
4. Step 4: Simplify right side
   1,168.10x = 1,322,081.95
5. Step 5: Solve for x
   x = 1,322,081.95/1,168.10
6. Step 6: Final answer
   x = 1,131.82