Finding the Fourth Proportional to 2,824.98, 4,237.91 and 876.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,824.98 : 4,237.91 = 876.72 : x
2. Step 2: Convert to fraction form
   2,824.98/4,237.91 = 876.72/x
3. Step 3: Cross multiply
   2,824.98x = 4,237.91 × 876.72
4. Step 4: Simplify right side
   2,824.98x = 3,715,460.46
5. Step 5: Solve for x
   x = 3,715,460.46/2,824.98
6. Step 6: Final answer
   x = 1,315.22