Finding the Fourth Proportional to 2,082.76, 3,122.02 and 1,158.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,082.76 : 3,122.02 = 1,158.72 : x
2. Step 2: Convert to fraction form
   2,082.76/3,122.02 = 1,158.72/x
3. Step 3: Cross multiply
   2,082.76x = 3,122.02 × 1,158.72
4. Step 4: Simplify right side
   2,082.76x = 3,617,547.01
5. Step 5: Solve for x
   x = 3,617,547.01/2,082.76
6. Step 6: Final answer
   x = 1,736.90