Finding the Fourth Proportional to 2,715.88, 4,074.55 and 1,155.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,715.88 : 4,074.55 = 1,155.94 : x
2. Step 2: Convert to fraction form
   2,715.88/4,074.55 = 1,155.94/x
3. Step 3: Cross multiply
   2,715.88x = 4,074.55 × 1,155.94
4. Step 4: Simplify right side
   2,715.88x = 4,709,935.33
5. Step 5: Solve for x
   x = 4,709,935.33/2,715.88
6. Step 6: Final answer
   x = 1,734.22