Finding the Fourth Proportional to 1,462.01, 2,179.47 and 1,439.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,462.01 : 2,179.47 = 1,439.53 : x
2. Step 2: Convert to fraction form
   1,462.01/2,179.47 = 1,439.53/x
3. Step 3: Cross multiply
   1,462.01x = 2,179.47 × 1,439.53
4. Step 4: Simplify right side
   1,462.01x = 3,137,394.35
5. Step 5: Solve for x
   x = 3,137,394.35/1,462.01
6. Step 6: Final answer
   x = 2,145.95