Finding the Fourth Proportional to 1,740.72, 2,400.17 and 1,181.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,740.72 : 2,400.17 = 1,181.55 : x
2. Step 2: Convert to fraction form
   1,740.72/2,400.17 = 1,181.55/x
3. Step 3: Cross multiply
   1,740.72x = 2,400.17 × 1,181.55
4. Step 4: Simplify right side
   1,740.72x = 2,835,920.86
5. Step 5: Solve for x
   x = 2,835,920.86/1,740.72
6. Step 6: Final answer
   x = 1,629.17