Finding the Fourth Proportional to 2,516.34, 3,774.52 and 872.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,516.34 : 3,774.52 = 872.50 : x
2. Step 2: Convert to fraction form
   2,516.34/3,774.52 = 872.50/x
3. Step 3: Cross multiply
   2,516.34x = 3,774.52 × 872.50
4. Step 4: Simplify right side
   2,516.34x = 3,293,259.27
5. Step 5: Solve for x
   x = 3,293,259.27/2,516.34
6. Step 6: Final answer
   x = 1,308.75