Finding the Fourth Proportional to 2,666.54, 3,973 and 2,517.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,666.54 : 3,973 = 2,517.50 : x
2. Step 2: Convert to fraction form
   2,666.54/3,973 = 2,517.50/x
3. Step 3: Cross multiply
   2,666.54x = 3,973 × 2,517.50
4. Step 4: Simplify right side
   2,666.54x = 10,002,027.50
5. Step 5: Solve for x
   x = 10,002,027.50/2,666.54
6. Step 6: Final answer
   x = 3,750.94