Finding the Fourth Proportional to 1,487.91, 2,225.30 and 1,324.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,487.91 : 2,225.30 = 1,324.54 : x
2. Step 2: Convert to fraction form
   1,487.91/2,225.30 = 1,324.54/x
3. Step 3: Cross multiply
   1,487.91x = 2,225.30 × 1,324.54
4. Step 4: Simplify right side
   1,487.91x = 2,947,498.86
5. Step 5: Solve for x
   x = 2,947,498.86/1,487.91
6. Step 6: Final answer
   x = 1,980.97