Finding the Fourth Proportional to 1,488.32, 2,227.80 and 1,342.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.32 : 2,227.80 = 1,342.16 : x
2. Step 2: Convert to fraction form
   1,488.32/2,227.80 = 1,342.16/x
3. Step 3: Cross multiply
   1,488.32x = 2,227.80 × 1,342.16
4. Step 4: Simplify right side
   1,488.32x = 2,990,064.05
5. Step 5: Solve for x
   x = 2,990,064.05/1,488.32
6. Step 6: Final answer
   x = 2,009.02