Finding the Fourth Proportional to 1,210.34, 1,813.89 and 552.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,210.34 : 1,813.89 = 552.29 : x
2. Step 2: Convert to fraction form
   1,210.34/1,813.89 = 552.29/x
3. Step 3: Cross multiply
   1,210.34x = 1,813.89 × 552.29
4. Step 4: Simplify right side
   1,210.34x = 1,001,786.31
5. Step 5: Solve for x
   x = 1,001,786.31/1,210.34
6. Step 6: Final answer
   x = 827.69