Finding the Fourth Proportional to 2,573.98, 3,551.94 and 1,663.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,573.98 : 3,551.94 = 1,663.90 : x
2. Step 2: Convert to fraction form
   2,573.98/3,551.94 = 1,663.90/x
3. Step 3: Cross multiply
   2,573.98x = 3,551.94 × 1,663.90
4. Step 4: Simplify right side
   2,573.98x = 5,910,086.72
5. Step 5: Solve for x
   x = 5,910,086.72/2,573.98
6. Step 6: Final answer
   x = 2,296.09