Finding the Fourth Proportional to 1,224.89, 1,836.86 and 531.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,224.89 : 1,836.86 = 531.51 : x
2. Step 2: Convert to fraction form
   1,224.89/1,836.86 = 531.51/x
3. Step 3: Cross multiply
   1,224.89x = 1,836.86 × 531.51
4. Step 4: Simplify right side
   1,224.89x = 976,300.27
5. Step 5: Solve for x
   x = 976,300.27/1,224.89
6. Step 6: Final answer
   x = 797.05