Finding the Fourth Proportional to 1,143.09, 1,577.01 and 700.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,143.09 : 1,577.01 = 700.83 : x
2. Step 2: Convert to fraction form
   1,143.09/1,577.01 = 700.83/x
3. Step 3: Cross multiply
   1,143.09x = 1,577.01 × 700.83
4. Step 4: Simplify right side
   1,143.09x = 1,105,215.92
5. Step 5: Solve for x
   x = 1,105,215.92/1,143.09
6. Step 6: Final answer
   x = 966.87