Finding the Fourth Proportional to 1,488.42, 2,231.86 and 873.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.42 : 2,231.86 = 873.33 : x
2. Step 2: Convert to fraction form
   1,488.42/2,231.86 = 873.33/x
3. Step 3: Cross multiply
   1,488.42x = 2,231.86 × 873.33
4. Step 4: Simplify right side
   1,488.42x = 1,949,150.29
5. Step 5: Solve for x
   x = 1,949,150.29/1,488.42
6. Step 6: Final answer
   x = 1,309.54