Finding the Fourth Proportional to 2,010.29, 2,774.25 and 1,223.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,010.29 : 2,774.25 = 1,223.88 : x
2. Step 2: Convert to fraction form
   2,010.29/2,774.25 = 1,223.88/x
3. Step 3: Cross multiply
   2,010.29x = 2,774.25 × 1,223.88
4. Step 4: Simplify right side
   2,010.29x = 3,395,329.10
5. Step 5: Solve for x
   x = 3,395,329.10/2,010.29
6. Step 6: Final answer
   x = 1,688.98