Finding the Fourth Proportional to 2,604.71, 3,590.76 and 1,857.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,604.71 : 3,590.76 = 1,857.37 : x
2. Step 2: Convert to fraction form
   2,604.71/3,590.76 = 1,857.37/x
3. Step 3: Cross multiply
   2,604.71x = 3,590.76 × 1,857.37
4. Step 4: Simplify right side
   2,604.71x = 6,669,369.90
5. Step 5: Solve for x
   x = 6,669,369.90/2,604.71
6. Step 6: Final answer
   x = 2,560.50