Finding the Fourth Proportional to 2,760.32, 4,138.40 and 1,300.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,760.32 : 4,138.40 = 1,300.48 : x
2. Step 2: Convert to fraction form
   2,760.32/4,138.40 = 1,300.48/x
3. Step 3: Cross multiply
   2,760.32x = 4,138.40 × 1,300.48
4. Step 4: Simplify right side
   2,760.32x = 5,381,906.43
5. Step 5: Solve for x
   x = 5,381,906.43/2,760.32
6. Step 6: Final answer
   x = 1,949.74