Finding the Fourth Proportional to 2,516.47, 3,774.74 and 873.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,516.47 : 3,774.74 = 873.05 : x
2. Step 2: Convert to fraction form
   2,516.47/3,774.74 = 873.05/x
3. Step 3: Cross multiply
   2,516.47x = 3,774.74 × 873.05
4. Step 4: Simplify right side
   2,516.47x = 3,295,513.52
5. Step 5: Solve for x
   x = 3,295,513.52/2,516.47
6. Step 6: Final answer
   x = 1,309.58