Finding the Fourth Proportional to 2,760.01, 4,138.47 and 1,440.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,760.01 : 4,138.47 = 1,440.46 : x
2. Step 2: Convert to fraction form
   2,760.01/4,138.47 = 1,440.46/x
3. Step 3: Cross multiply
   2,760.01x = 4,138.47 × 1,440.46
4. Step 4: Simplify right side
   2,760.01x = 5,961,279.80
5. Step 5: Solve for x
   x = 5,961,279.80/2,760.01
6. Step 6: Final answer
   x = 2,159.88