Finding the Fourth Proportional to 2,861.55, 4,294.74 and 1,131.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,861.55 : 4,294.74 = 1,131.39 : x
2. Step 2: Convert to fraction form
   2,861.55/4,294.74 = 1,131.39/x
3. Step 3: Cross multiply
   2,861.55x = 4,294.74 × 1,131.39
4. Step 4: Simplify right side
   2,861.55x = 4,859,025.89
5. Step 5: Solve for x
   x = 4,859,025.89/2,861.55
6. Step 6: Final answer
   x = 1,698.04