Finding the Fourth Proportional to 1,812.28, 2,714.52 and 1,224.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,812.28 : 2,714.52 = 1,224.05 : x
2. Step 2: Convert to fraction form
   1,812.28/2,714.52 = 1,224.05/x
3. Step 3: Cross multiply
   1,812.28x = 2,714.52 × 1,224.05
4. Step 4: Simplify right side
   1,812.28x = 3,322,702.09
5. Step 5: Solve for x
   x = 3,322,702.09/1,812.28
6. Step 6: Final answer
   x = 1,833.43