Finding the Fourth Proportional to 2,196.79, 3,295.18 and 553.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.79 : 3,295.18 = 553.35 : x
2. Step 2: Convert to fraction form
   2,196.79/3,295.18 = 553.35/x
3. Step 3: Cross multiply
   2,196.79x = 3,295.18 × 553.35
4. Step 4: Simplify right side
   2,196.79x = 1,823,381.00
5. Step 5: Solve for x
   x = 1,823,381.00/2,196.79
6. Step 6: Final answer
   x = 830.02