Finding the Fourth Proportional to 2,040.42, 2,815.57 and 1,156.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,040.42 : 2,815.57 = 1,156.30 : x
2. Step 2: Convert to fraction form
   2,040.42/2,815.57 = 1,156.30/x
3. Step 3: Cross multiply
   2,040.42x = 2,815.57 × 1,156.30
4. Step 4: Simplify right side
   2,040.42x = 3,255,643.59
5. Step 5: Solve for x
   x = 3,255,643.59/2,040.42
6. Step 6: Final answer
   x = 1,595.58