Finding the Fourth Proportional to 2,013.62, 2,789.97 and 1,969.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,013.62 : 2,789.97 = 1,969.88 : x
2. Step 2: Convert to fraction form
   2,013.62/2,789.97 = 1,969.88/x
3. Step 3: Cross multiply
   2,013.62x = 2,789.97 × 1,969.88
4. Step 4: Simplify right side
   2,013.62x = 5,495,892.15
5. Step 5: Solve for x
   x = 5,495,892.15/2,013.62
6. Step 6: Final answer
   x = 2,729.37