Finding the Fourth Proportional to 2,042.72, 2,819.10 and 1,158.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,042.72 : 2,819.10 = 1,158.60 : x
2. Step 2: Convert to fraction form
   2,042.72/2,819.10 = 1,158.60/x
3. Step 3: Cross multiply
   2,042.72x = 2,819.10 × 1,158.60
4. Step 4: Simplify right side
   2,042.72x = 3,266,209.26
5. Step 5: Solve for x
   x = 3,266,209.26/2,042.72
6. Step 6: Final answer
   x = 1,598.95