Finding the Fourth Proportional to 1,420.87, 1,959.86 and 888.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,420.87 : 1,959.86 = 888.83 : x
2. Step 2: Convert to fraction form
   1,420.87/1,959.86 = 888.83/x
3. Step 3: Cross multiply
   1,420.87x = 1,959.86 × 888.83
4. Step 4: Simplify right side
   1,420.87x = 1,741,982.58
5. Step 5: Solve for x
   x = 1,741,982.58/1,420.87
6. Step 6: Final answer
   x = 1,226.00