Finding the Fourth Proportional to 2,716.86, 4,072.10 and 1,155.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,716.86 : 4,072.10 = 1,155.89 : x
2. Step 2: Convert to fraction form
   2,716.86/4,072.10 = 1,155.89/x
3. Step 3: Cross multiply
   2,716.86x = 4,072.10 × 1,155.89
4. Step 4: Simplify right side
   2,716.86x = 4,706,873.53
5. Step 5: Solve for x
   x = 4,706,873.53/2,716.86
6. Step 6: Final answer
   x = 1,732.47