Finding the Fourth Proportional to 2,868.18, 4,302.46 and 1,224.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,868.18 : 4,302.46 = 1,224.72 : x
2. Step 2: Convert to fraction form
   2,868.18/4,302.46 = 1,224.72/x
3. Step 3: Cross multiply
   2,868.18x = 4,302.46 × 1,224.72
4. Step 4: Simplify right side
   2,868.18x = 5,269,308.81
5. Step 5: Solve for x
   x = 5,269,308.81/2,868.18
6. Step 6: Final answer
   x = 1,837.16