Finding the Fourth Proportional to 1,150.62, 1,587.96 and 800.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.62 : 1,587.96 = 800.70 : x
2. Step 2: Convert to fraction form
   1,150.62/1,587.96 = 800.70/x
3. Step 3: Cross multiply
   1,150.62x = 1,587.96 × 800.70
4. Step 4: Simplify right side
   1,150.62x = 1,271,479.57
5. Step 5: Solve for x
   x = 1,271,479.57/1,150.62
6. Step 6: Final answer
   x = 1,105.04