Finding the Fourth Proportional to 2,086.14, 2,878.58 and 1,201.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086.14 : 2,878.58 = 1,201.98 : x
2. Step 2: Convert to fraction form
   2,086.14/2,878.58 = 1,201.98/x
3. Step 3: Cross multiply
   2,086.14x = 2,878.58 × 1,201.98
4. Step 4: Simplify right side
   2,086.14x = 3,459,995.59
5. Step 5: Solve for x
   x = 3,459,995.59/2,086.14
6. Step 6: Final answer
   x = 1,658.56