Finding the Fourth Proportional to 1,358.25, 2,037.69 and 699.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,358.25 : 2,037.69 = 699.89 : x
2. Step 2: Convert to fraction form
   1,358.25/2,037.69 = 699.89/x
3. Step 3: Cross multiply
   1,358.25x = 2,037.69 × 699.89
4. Step 4: Simplify right side
   1,358.25x = 1,426,148.67
5. Step 5: Solve for x
   x = 1,426,148.67/1,358.25
6. Step 6: Final answer
   x = 1,049.99