Finding the Fourth Proportional to 1,442.34, 1,987.98 and 1,232.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,442.34 : 1,987.98 = 1,232.55 : x
2. Step 2: Convert to fraction form
   1,442.34/1,987.98 = 1,232.55/x
3. Step 3: Cross multiply
   1,442.34x = 1,987.98 × 1,232.55
4. Step 4: Simplify right side
   1,442.34x = 2,450,280.13
5. Step 5: Solve for x
   x = 2,450,280.13/1,442.34
6. Step 6: Final answer
   x = 1,698.82