Finding the Fourth Proportional to 1,139.32, 1,705.02 and 700.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,139.32 : 1,705.02 = 700.38 : x
2. Step 2: Convert to fraction form
   1,139.32/1,705.02 = 700.38/x
3. Step 3: Cross multiply
   1,139.32x = 1,705.02 × 700.38
4. Step 4: Simplify right side
   1,139.32x = 1,194,161.91
5. Step 5: Solve for x
   x = 1,194,161.91/1,139.32
6. Step 6: Final answer
   x = 1,048.14