Finding the Fourth Proportional to 2,085.74, 2,879.36 and 1,201.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,085.74 : 2,879.36 = 1,201.37 : x
2. Step 2: Convert to fraction form
   2,085.74/2,879.36 = 1,201.37/x
3. Step 3: Cross multiply
   2,085.74x = 2,879.36 × 1,201.37
4. Step 4: Simplify right side
   2,085.74x = 3,459,156.32
5. Step 5: Solve for x
   x = 3,459,156.32/2,085.74
6. Step 6: Final answer
   x = 1,658.48