Finding the Fourth Proportional to 1,050.42, 1,448.51 and 709.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,050.42 : 1,448.51 = 709.08 : x
2. Step 2: Convert to fraction form
   1,050.42/1,448.51 = 709.08/x
3. Step 3: Cross multiply
   1,050.42x = 1,448.51 × 709.08
4. Step 4: Simplify right side
   1,050.42x = 1,027,109.47
5. Step 5: Solve for x
   x = 1,027,109.47/1,050.42
6. Step 6: Final answer
   x = 977.81