Finding the Fourth Proportional to 2,663.31, 3,992.06 and 1,364.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,663.31 : 3,992.06 = 1,364.85 : x
2. Step 2: Convert to fraction form
   2,663.31/3,992.06 = 1,364.85/x
3. Step 3: Cross multiply
   2,663.31x = 3,992.06 × 1,364.85
4. Step 4: Simplify right side
   2,663.31x = 5,448,556.27
5. Step 5: Solve for x
   x = 5,448,556.27/2,663.31
6. Step 6: Final answer
   x = 2,045.78