Finding the Fourth Proportional to 2,861.34, 4,289.58 and 1,131.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,861.34 : 4,289.58 = 1,131.18 : x
2. Step 2: Convert to fraction form
   2,861.34/4,289.58 = 1,131.18/x
3. Step 3: Cross multiply
   2,861.34x = 4,289.58 × 1,131.18
4. Step 4: Simplify right side
   2,861.34x = 4,852,287.10
5. Step 5: Solve for x
   x = 4,852,287.10/2,861.34
6. Step 6: Final answer
   x = 1,695.81