Finding the Fourth Proportional to 2,992.74, 4,131.87 and 1,930.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,992.74 : 4,131.87 = 1,930.89 : x
2. Step 2: Convert to fraction form
   2,992.74/4,131.87 = 1,930.89/x
3. Step 3: Cross multiply
   2,992.74x = 4,131.87 × 1,930.89
4. Step 4: Simplify right side
   2,992.74x = 7,978,186.46
5. Step 5: Solve for x
   x = 7,978,186.46/2,992.74
6. Step 6: Final answer
   x = 2,665.85