Finding the Fourth Proportional to 1,442.48, 1,990.86 and 1,132.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,442.48 : 1,990.86 = 1,132.52 : x
2. Step 2: Convert to fraction form
   1,442.48/1,990.86 = 1,132.52/x
3. Step 3: Cross multiply
   1,442.48x = 1,990.86 × 1,132.52
4. Step 4: Simplify right side
   1,442.48x = 2,254,688.77
5. Step 5: Solve for x
   x = 2,254,688.77/1,442.48
6. Step 6: Final answer
   x = 1,563.06