Finding the Fourth Proportional to 2,629.22, 3,940.68 and 1,166.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,629.22 : 3,940.68 = 1,166.72 : x
2. Step 2: Convert to fraction form
   2,629.22/3,940.68 = 1,166.72/x
3. Step 3: Cross multiply
   2,629.22x = 3,940.68 × 1,166.72
4. Step 4: Simplify right side
   2,629.22x = 4,597,670.17
5. Step 5: Solve for x
   x = 4,597,670.17/2,629.22
6. Step 6: Final answer
   x = 1,748.68