Finding the Fourth Proportional to 1,882.18, 2,598.71 and 1,439.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,882.18 : 2,598.71 = 1,439.31 : x
2. Step 2: Convert to fraction form
   1,882.18/2,598.71 = 1,439.31/x
3. Step 3: Cross multiply
   1,882.18x = 2,598.71 × 1,439.31
4. Step 4: Simplify right side
   1,882.18x = 3,740,342.09
5. Step 5: Solve for x
   x = 3,740,342.09/1,882.18
6. Step 6: Final answer
   x = 1,987.24