Finding the Fourth Proportional to 3,510.88, 5,267.85 and 1,663.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,510.88 : 5,267.85 = 1,663.31 : x
2. Step 2: Convert to fraction form
   3,510.88/5,267.85 = 1,663.31/x
3. Step 3: Cross multiply
   3,510.88x = 5,267.85 × 1,663.31
4. Step 4: Simplify right side
   3,510.88x = 8,762,067.58
5. Step 5: Solve for x
   x = 8,762,067.58/3,510.88
6. Step 6: Final answer
   x = 2,495.69