Finding the Fourth Proportional to 1,814.56, 2,501.17 and 1,224.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,814.56 : 2,501.17 = 1,224.07 : x
2. Step 2: Convert to fraction form
   1,814.56/2,501.17 = 1,224.07/x
3. Step 3: Cross multiply
   1,814.56x = 2,501.17 × 1,224.07
4. Step 4: Simplify right side
   1,814.56x = 3,061,597.85
5. Step 5: Solve for x
   x = 3,061,597.85/1,814.56
6. Step 6: Final answer
   x = 1,687.24