Finding the Fourth Proportional to 1,442.52, 1,989 and 1,364.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,442.52 : 1,989 = 1,364.70 : x
2. Step 2: Convert to fraction form
   1,442.52/1,989 = 1,364.70/x
3. Step 3: Cross multiply
   1,442.52x = 1,989 × 1,364.70
4. Step 4: Simplify right side
   1,442.52x = 2,714,388.30
5. Step 5: Solve for x
   x = 2,714,388.30/1,442.52
6. Step 6: Final answer
   x = 1,881.70