Finding the Fourth Proportional to 2,992.50, 4,490.57 and 2,810.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,992.50 : 4,490.57 = 2,810.25 : x
2. Step 2: Convert to fraction form
   2,992.50/4,490.57 = 2,810.25/x
3. Step 3: Cross multiply
   2,992.50x = 4,490.57 × 2,810.25
4. Step 4: Simplify right side
   2,992.50x = 12,619,631.37
5. Step 5: Solve for x
   x = 12,619,631.37/2,992.50
6. Step 6: Final answer
   x = 4,217.09