Finding the Fourth Proportional to 2,659.57, 3,670.65 and 2,028.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,659.57 : 3,670.65 = 2,028.91 : x
2. Step 2: Convert to fraction form
   2,659.57/3,670.65 = 2,028.91/x
3. Step 3: Cross multiply
   2,659.57x = 3,670.65 × 2,028.91
4. Step 4: Simplify right side
   2,659.57x = 7,447,411.37
5. Step 5: Solve for x
   x = 7,447,411.37/2,659.57
6. Step 6: Final answer
   x = 2,800.23