Finding the Fourth Proportional to 2,086.24, 3,129.72 and 700.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086.24 : 3,129.72 = 700.08 : x
2. Step 2: Convert to fraction form
   2,086.24/3,129.72 = 700.08/x
3. Step 3: Cross multiply
   2,086.24x = 3,129.72 × 700.08
4. Step 4: Simplify right side
   2,086.24x = 2,191,054.38
5. Step 5: Solve for x
   x = 2,191,054.38/2,086.24
6. Step 6: Final answer
   x = 1,050.24