Finding the Fourth Proportional to 2,665.88, 4,000.25 and 1,297.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665.88 : 4,000.25 = 1,297.88 : x
2. Step 2: Convert to fraction form
   2,665.88/4,000.25 = 1,297.88/x
3. Step 3: Cross multiply
   2,665.88x = 4,000.25 × 1,297.88
4. Step 4: Simplify right side
   2,665.88x = 5,191,827.71
5. Step 5: Solve for x
   x = 5,191,827.71/2,665.88
6. Step 6: Final answer
   x = 1,947.51