Finding the Fourth Proportional to 1,866.47, 2,796.98 and 825.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,866.47 : 2,796.98 = 825.53 : x
2. Step 2: Convert to fraction form
   1,866.47/2,796.98 = 825.53/x
3. Step 3: Cross multiply
   1,866.47x = 2,796.98 × 825.53
4. Step 4: Simplify right side
   1,866.47x = 2,308,993.76
5. Step 5: Solve for x
   x = 2,308,993.76/1,866.47
6. Step 6: Final answer
   x = 1,237.09