Finding the Fourth Proportional to 2,358.49, 3,538.27 and 715.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,358.49 : 3,538.27 = 715.05 : x
2. Step 2: Convert to fraction form
   2,358.49/3,538.27 = 715.05/x
3. Step 3: Cross multiply
   2,358.49x = 3,538.27 × 715.05
4. Step 4: Simplify right side
   2,358.49x = 2,530,036.39
5. Step 5: Solve for x
   x = 2,530,036.39/2,358.49
6. Step 6: Final answer
   x = 1,072.74