Finding the Fourth Proportional to 2,900.80, 4,347.55 and 2,667.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,900.80 : 4,347.55 = 2,667.52 : x
2. Step 2: Convert to fraction form
   2,900.80/4,347.55 = 2,667.52/x
3. Step 3: Cross multiply
   2,900.80x = 4,347.55 × 2,667.52
4. Step 4: Simplify right side
   2,900.80x = 11,597,176.58
5. Step 5: Solve for x
   x = 11,597,176.58/2,900.80
6. Step 6: Final answer
   x = 3,997.92