Finding the Fourth Proportional to 2,697.52, 4,040.40 and 1,307.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,697.52 : 4,040.40 = 1,307.91 : x
2. Step 2: Convert to fraction form
   2,697.52/4,040.40 = 1,307.91/x
3. Step 3: Cross multiply
   2,697.52x = 4,040.40 × 1,307.91
4. Step 4: Simplify right side
   2,697.52x = 5,284,479.56
5. Step 5: Solve for x
   x = 5,284,479.56/2,697.52
6. Step 6: Final answer
   x = 1,959.02