Finding the Fourth Proportional to 1,150.93, 1,587.67 and 870.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.93 : 1,587.67 = 870.67 : x
2. Step 2: Convert to fraction form
   1,150.93/1,587.67 = 870.67/x
3. Step 3: Cross multiply
   1,150.93x = 1,587.67 × 870.67
4. Step 4: Simplify right side
   1,150.93x = 1,382,327.52
5. Step 5: Solve for x
   x = 1,382,327.52/1,150.93
6. Step 6: Final answer
   x = 1,201.06