Finding the Fourth Proportional to 2,715.29, 4,074.89 and 1,156.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,715.29 : 4,074.89 = 1,156.39 : x
2. Step 2: Convert to fraction form
   2,715.29/4,074.89 = 1,156.39/x
3. Step 3: Cross multiply
   2,715.29x = 4,074.89 × 1,156.39
4. Step 4: Simplify right side
   2,715.29x = 4,712,146.08
5. Step 5: Solve for x
   x = 4,712,146.08/2,715.29
6. Step 6: Final answer
   x = 1,735.41