Finding the Fourth Proportional to 2,992.16, 4,128.98 and 1,665.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,992.16 : 4,128.98 = 1,665.83 : x
2. Step 2: Convert to fraction form
   2,992.16/4,128.98 = 1,665.83/x
3. Step 3: Cross multiply
   2,992.16x = 4,128.98 × 1,665.83
4. Step 4: Simplify right side
   2,992.16x = 6,878,149.78
5. Step 5: Solve for x
   x = 6,878,149.78/2,992.16
6. Step 6: Final answer
   x = 2,298.73