Finding the Fourth Proportional to 2,697.88, 4,045.20 and 1,308.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,697.88 : 4,045.20 = 1,308.48 : x
2. Step 2: Convert to fraction form
   2,697.88/4,045.20 = 1,308.48/x
3. Step 3: Cross multiply
   2,697.88x = 4,045.20 × 1,308.48
4. Step 4: Simplify right side
   2,697.88x = 5,293,063.30
5. Step 5: Solve for x
   x = 5,293,063.30/2,697.88
6. Step 6: Final answer
   x = 1,961.93