Finding the Fourth Proportional to 1,031.43, 1,544.71 and 705.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,031.43 : 1,544.71 = 705.81 : x
2. Step 2: Convert to fraction form
   1,031.43/1,544.71 = 705.81/x
3. Step 3: Cross multiply
   1,031.43x = 1,544.71 × 705.81
4. Step 4: Simplify right side
   1,031.43x = 1,090,271.77
5. Step 5: Solve for x
   x = 1,090,271.77/1,031.43
6. Step 6: Final answer
   x = 1,057.05