Finding the Fourth Proportional to 1,342.37, 1,853.27 and 870.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,342.37 : 1,853.27 = 870.41 : x
2. Step 2: Convert to fraction form
   1,342.37/1,853.27 = 870.41/x
3. Step 3: Cross multiply
   1,342.37x = 1,853.27 × 870.41
4. Step 4: Simplify right side
   1,342.37x = 1,613,091.12
5. Step 5: Solve for x
   x = 1,613,091.12/1,342.37
6. Step 6: Final answer
   x = 1,201.68