Finding the Fourth Proportional to 2,897.80, 4,003.50 and 2,664.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,897.80 : 4,003.50 = 2,664.52 : x
2. Step 2: Convert to fraction form
   2,897.80/4,003.50 = 2,664.52/x
3. Step 3: Cross multiply
   2,897.80x = 4,003.50 × 2,664.52
4. Step 4: Simplify right side
   2,897.80x = 10,667,405.82
5. Step 5: Solve for x
   x = 10,667,405.82/2,897.80
6. Step 6: Final answer
   x = 3,681.21