Finding the Fourth Proportional to 2,188.64, 3,283.61 and 1,019.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188.64 : 3,283.61 = 1,019.34 : x
2. Step 2: Convert to fraction form
   2,188.64/3,283.61 = 1,019.34/x
3. Step 3: Cross multiply
   2,188.64x = 3,283.61 × 1,019.34
4. Step 4: Simplify right side
   2,188.64x = 3,347,115.02
5. Step 5: Solve for x
   x = 3,347,115.02/2,188.64
6. Step 6: Final answer
   x = 1,529.31