Finding the Fourth Proportional to 2,285.06, 3,427.60 and 553.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,285.06 : 3,427.60 = 553.69 : x
2. Step 2: Convert to fraction form
   2,285.06/3,427.60 = 553.69/x
3. Step 3: Cross multiply
   2,285.06x = 3,427.60 × 553.69
4. Step 4: Simplify right side
   2,285.06x = 1,897,817.89
5. Step 5: Solve for x
   x = 1,897,817.89/2,285.06
6. Step 6: Final answer
   x = 830.53