Finding the Fourth Proportional to 2,516.81, 3,774.71 and 873.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,516.81 : 3,774.71 = 873.43 : x
2. Step 2: Convert to fraction form
   2,516.81/3,774.71 = 873.43/x
3. Step 3: Cross multiply
   2,516.81x = 3,774.71 × 873.43
4. Step 4: Simplify right side
   2,516.81x = 3,296,937.70
5. Step 5: Solve for x
   x = 3,296,937.70/2,516.81
6. Step 6: Final answer
   x = 1,309.97