Finding the Fourth Proportional to 2,010.17, 2,774.59 and 1,224.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,010.17 : 2,774.59 = 1,224.21 : x
2. Step 2: Convert to fraction form
   2,010.17/2,774.59 = 1,224.21/x
3. Step 3: Cross multiply
   2,010.17x = 2,774.59 × 1,224.21
4. Step 4: Simplify right side
   2,010.17x = 3,396,674.70
5. Step 5: Solve for x
   x = 3,396,674.70/2,010.17
6. Step 6: Final answer
   x = 1,689.74