Finding the Fourth Proportional to 1,050.10, 1,449.38 and 696.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,050.10 : 1,449.38 = 696.10 : x
2. Step 2: Convert to fraction form
   1,050.10/1,449.38 = 696.10/x
3. Step 3: Cross multiply
   1,050.10x = 1,449.38 × 696.10
4. Step 4: Simplify right side
   1,050.10x = 1,008,913.42
5. Step 5: Solve for x
   x = 1,008,913.42/1,050.10
6. Step 6: Final answer
   x = 960.78