Finding the Fourth Proportional to 2,359.17, 3,535.92 and 1,664.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,359.17 : 3,535.92 = 1,664.80 : x
2. Step 2: Convert to fraction form
   2,359.17/3,535.92 = 1,664.80/x
3. Step 3: Cross multiply
   2,359.17x = 3,535.92 × 1,664.80
4. Step 4: Simplify right side
   2,359.17x = 5,886,590.78
5. Step 5: Solve for x
   x = 5,886,590.78/2,359.17
6. Step 6: Final answer
   x = 2,495.20