Finding the Fourth Proportional to 2,992.52, 4,128.03 and 2,490.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,992.52 : 4,128.03 = 2,490.91 : x
2. Step 2: Convert to fraction form
   2,992.52/4,128.03 = 2,490.91/x
3. Step 3: Cross multiply
   2,992.52x = 4,128.03 × 2,490.91
4. Step 4: Simplify right side
   2,992.52x = 10,282,540.89
5. Step 5: Solve for x
   x = 10,282,540.89/2,992.52
6. Step 6: Final answer
   x = 3,436.08