Finding the Fourth Proportional to 2,040.38, 2,815.78 and 1,156.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,040.38 : 2,815.78 = 1,156.16 : x
2. Step 2: Convert to fraction form
   2,040.38/2,815.78 = 1,156.16/x
3. Step 3: Cross multiply
   2,040.38x = 2,815.78 × 1,156.16
4. Step 4: Simplify right side
   2,040.38x = 3,255,492.20
5. Step 5: Solve for x
   x = 3,255,492.20/2,040.38
6. Step 6: Final answer
   x = 1,595.53