Finding the Fourth Proportional to 1,003.20, 1,502.37 and 709.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,003.20 : 1,502.37 = 709.94 : x
2. Step 2: Convert to fraction form
   1,003.20/1,502.37 = 709.94/x
3. Step 3: Cross multiply
   1,003.20x = 1,502.37 × 709.94
4. Step 4: Simplify right side
   1,003.20x = 1,066,585.05
5. Step 5: Solve for x
   x = 1,066,585.05/1,003.20
6. Step 6: Final answer
   x = 1,063.18