Finding the Fourth Proportional to 2,010.58, 2,774.54 and 1,171.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,010.58 : 2,774.54 = 1,171.62 : x
2. Step 2: Convert to fraction form
   2,010.58/2,774.54 = 1,171.62/x
3. Step 3: Cross multiply
   2,010.58x = 2,774.54 × 1,171.62
4. Step 4: Simplify right side
   2,010.58x = 3,250,709.48
5. Step 5: Solve for x
   x = 3,250,709.48/2,010.58
6. Step 6: Final answer
   x = 1,616.80